1. T-Mobile Sidekicks

2. Sidekick info Sidekick was developed by Andy Rubin in 2002... T-Mobile USA tends to compete on price and advertises heavily to the youth market Many kids like it because they are able to do anything with this device like: browse the internet, Talk to their friends all the time by texting or by instant Messaging

3. Released on 1 October 2002, the original Hiptop was unique compared to all other hardware versions. All the units, from the beginning, 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. The headset jack serves a dual purpose, as it is also used for the accessory camera. A later revision of the Hiptop upgraded its screen from a monochrome LCD to a color LCD viewable with or without the backlight on (unique to Hiptop models until the LX). It is slightly bigger than any other Hiptop, also much older. It is rare to come across one in current times.

4. T Mobile Sidekick 2 Another important feature of the Hiptop 2 is the ability to easily view the screen even without a backlight. All units until the LX model had this feature. Most other manufacturers utilized an LCD screen that was not visible without backlight Released in 2004 the Sidekick 2 was introduced with the D-Pad The Hiptop 2 has two speakers; The phone speaker built into the D-pad, and a speaker on the back of the unit

5. T Mobile Sidekick 3 Released 10 July 2006, the SK3 manufactured by Sharp was smaller than previous versions New features were introduced including a removable 3.7v 1500 mAh removable battery, The MiniUSB functionality was changed The built-in storage allows for end-users to store files for .mp3, .wav, and .aac playback, camera, user customizable themes

6. T-Mobile Sidekick iD Although many of the "fun" features were taken out, Danger and Sharp did keep some of the features previously seen on the Sidekick 1, 2 and 3 The Sidekick iD is a smaller version of the Sidekick 3. It was released 13 April 2007. The Sidekick iD was aimed at younger, less affluent customers. To reduce the cost of the Sidekick iD, the creators, (Sharp), removed some of the features of the Sidekick 3, including the 1.3 megapixel camera, the Bluetooth capability, and its media player included the Sidekick-patented swivel screen, the hidden keyboard, and the trackball. However, a new Sidekick iD feature were removable colored "bumpers", allowing the appearance of the Sidekick to be easily changed.

7. Sidekick LX The Sidekick LX was released on 17 October 2007 downloadable music and backgrounds, a lighter weight, MMS messaging, a Micro SD card slot with a 128 MB card included The Hiptop LX is available in two different colors, Midnight Blue and Espresso Brown the LX includes a wider, higher-resolution screen, an upgraded keyboard blue LED mood lights on all four corners which coordinate to the user's settings

8. T-Mobile Sidekick 2008 The Sidekick 08 was created last year after the Slide was discontinued. This sidekick also has different shells where you can change the colors and have it match your outfits or different things you like. This Particular sidekick was created smaller and better than the LX. Personally this is the best Sidekick that was created because its smaller and has better qualities

9. Most Recent Sidekick 09 released on 13 May 2009 Supports applications like facebook, twitter, and Myspace. It has GPS installed in as an Application

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