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T-Mobile Sidekick

T-Mobile Sidekick is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand T-Mobile Sidekick rather than just read about it. In short: The Danger Hiptop (stylized hiptop), also branded and sold as T-Mobile Sidekick, is a mobile smartphone and communicator series that was produced by Danger, Inc. from 2002 to 2010, developed in close partnership with T-Mobile US and with most models manufactured by Sharp Corporation. The Hiptops were designed to be held horizontally with both hands, allowing typing with two thumbs on a QWERTY keyboard that is reveal…

T-Mobile Sidekick — main illustration
T-Mobile Sidekick — illustration

Key takeaways

  • T-Mobile Sidekick belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect T-Mobile Sidekick to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of T-Mobile Sidekick from memory before moving on to harder problems.

Reference excerpt

The Danger Hiptop (stylized hiptop), also branded and sold as T-Mobile Sidekick, is a mobile smartphone and communicator series that was produced by Danger, Inc. from 2002 to 2010, developed in close partnership with T-Mobile US and with most models manufactured by Sharp Corporation. The Hiptops were designed to be held horizontally with both hands, allowing typing with two thumbs on a QWERTY keyboard that is revealed by a 'flip out' display rotating 180 degrees on a hinge pin (with the exception of one model, Hiptop Slide). They ran on a cloud-based, Java-made software synchronizing with back-end services provided and maintained by Danger, holding personal data and offering services such as email, instant messaging, and a catalog of downloadable apps. Danger, Inc. was cofounded by Andy Rubin, who would become the author of Android. The original Hiptop was released on October 1, 2002, manufactured by Flextronics. Described at the time as a "PDA phone", it was notable for combining a cell phone with a full HTML supporting web browser, integrated AOL Instant Messenger, a keyboard and a navigation scroll wheel, running on the GSM and GPRS cell network of T-Mobile. The second generation Hiptop/Sidekick debuted in 2004, manufactured by Sharp, with a slimmer design and the addition of a VGA camera. This was followed by the third generation in 2006 which replaced the scroll wheel with a trackball and added a music player, Bluetooth, and faster EDGE data. The line diversified in 2007 with the Sidekick iD, billed as a budget-friendly model with cut features, as well as the Sidekick Slide, a model manufactured by Motorola and with a slide design instead of a swiveling screen. The fourth generation top model was the Sidekick LX, increasing the display size to 3.0 inches, and this was followed by the Sidekick 2008 and the final model, Sidekick LX 2009, with numerous hardware upgrades including 3G connectivity and social networking software integration—this one was later also sold as the Mobiflip or the Sharp Jump, with modified software and not using Danger's data services. The Hiptop/Sidekick became popular especially among young consumers, unlike similar devices during its early years, namely Palm and BlackBerry, which found more business success. Danger, Inc. was purchased by Microsoft for $500 million in 2008, who used the technology to build the ill-fated Microsoft Kin. Danger's cloud services were shut down on May 31, 2011, ending the Hiptop/Sidekick data services after almost nine years in operation. The Sidekick was revived later that year in the form of a 4G device running Android 2.2 Froyo, manufactured by Samsung, using a similar form factor to the originals. The Sidekick became incredibly popular in the U.S., at its peak receiving much attention in American pop culture and now considered to be iconic. Some models were also marketed, to lesser success, in Canada (by Fido/Rogers), Australia (by Telstra), Singapore and a number of European countries.

Typical features

The Sidekick included a backlit monochrome display; the screen could be swiveled to cover the QWERTY keyboard. It also featured a clickable scroll wheel and blinking lights.

Model releases

hiptop/T-Mobile Sidekick (Flextronics)

The original Hiptop was made official on September 6, 2001, and was released on October 1, 2002, sold by T-Mobile in the United States, initial price was $200 and then $40 per month. A later revision of the Hiptop upgraded its screen from a monochrome LCD to a 65,000 color LCD. This version was released on June 6, 2003 by T-Mobile for a price of $299.99. From the beginning, Hiptops have featured "Menu", "Back", "Jump" and other keys accessible even when the unit was closed. The Hiptop also featured a speaker which is used for device sounds but not telephone. Along the top edge of the phone bezel is an infrared transceiver. Although Danger stated that the infrared port would come to use in the future for data transmission (i.e. IrDA), this never occurred and the port remained without purpose, and was not included at all in future Sidekicks. The headset jack serves a dual purpose, as it is also used for an optional accessory camera. SunCom and Edge Wireless used to sell the device in some parts of the United States. Fido was the exclusive Hiptop carrier in Canada and released it in August 2003. In Germany, the Hiptop service was also offered from 2003 by E-Plus which included a flat rate tariff. The Hiptop was also sold in Singapore by Starhub in 2004.

hiptop2/T-Mobile Sidekick II (Sharp)

Announced on August 9, 2004, and released on September 22, 2004 by T-Mobile US, the Hiptop 2 (stylized hiptop2) was the first to be manufactured by Sharp. Compared to the first generation, the new model moved the D-Pad (directional-pad), previously found on the inside, to the left hand side of the device, while shoulder dials, volume and power buttons were on the outside edges. The Hiptop2 also features an integrated VGA camera and a speakerphone at the rear of the unit. Also was the addition of page-up/page-down buttons on the top and bottom of its scroll wheel. In Canada, the Danger Hiptop2 launched on March 8, 2005. The Hiptop2 launched in Germany on March 10, 2005. It was later launched in Austria in October 2005 and Great Britain in November 2005. On October 9, 2006, the Australian Hiptop2 was released through Telstra. The Australian version is practically the same as the Sidekick II in the U.S. but re-constructed for the Australian audience—it has MSN Messenger built-in as the default messenger and Yahoo! Messenger which is downloadable from the catalog (the US version has Yahoo and AOL Instant Messenger).

Limited edition There are also two limited edition variants of the T-Mobile USA Sidekick II: Juicy Couture Edition (Pink) and Mister Cartoon Edition (Black). These are different case colors with the same hardware and operating systems.

hiptop3/T-Mobile Sidekick 3 (Sharp)

… excerpt ends here. Continue reading the full article.

Illustrations

T-Mobile Sidekick illustration
T-Mobile Sidekick: The original Hiptop while closed, showing the Menu and Jump buttons on the left exterior
The original Hiptop while closed, showing the Menu and Jump buttons on the left exterior
T-Mobile Sidekick: The Hiptops were designed to be held with both hands in landscape. Shown here: T-Mobile Sidekick 3.
The Hiptops were designed to be held with both hands in landscape. Shown here: T-Mobile Sidekick 3.
T-Mobile Sidekick: T-Mobile Color Sidekick
T-Mobile Color Sidekick
T-Mobile Sidekick: T-Mobile Sidekick II
T-Mobile Sidekick II

Worked examples

Example 1 — a first encounter with T-Mobile Sidekick

Start with the simplest possible case. Write down what T-Mobile Sidekick claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to T-Mobile Sidekick before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about T-Mobile Sidekick ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of T-Mobile Sidekick

In research
T-Mobile Sidekick appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses T-Mobile Sidekick in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
T-Mobile Sidekick is common in secondary-school and first-year university syllabi. It links to neighbouring topics Deutsche Telekom, Discontinued smartphones, Mobile phones introduced in 2002, so understanding it makes those chapters shorter.
In everyday life
Look for T-Mobile Sidekick outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study T-Mobile Sidekick in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what T-Mobile Sidekick means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain T-Mobile Sidekick out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is T-Mobile Sidekick in simple terms?

The Danger Hiptop (stylized hiptop), also branded and sold as T-Mobile Sidekick, is a mobile smartphone and communicator series that was produced by Danger, Inc. from 2002 to 2010, developed in close partnership with T-Mobile US and with most models manufactured by Sharp Corporation. The Hiptops we…

Why does T-Mobile Sidekick matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study T-Mobile Sidekick?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on T-Mobile Sidekick.

Tags

  • Deutsche Telekom
  • Discontinued smartphones
  • Mobile phones introduced in 2002
  • Mobile phones with an integrated hardware keyboard
  • Motorola smartphones
  • Personal digital assistants
  • Products and services discontinued in 2010
  • Samsung smartphones
  • Sharp Corporation mobile phones
  • Slider phones

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