Android

 Android is a mobile operating system for smartphones and tablets, developed by Google's Open Handset Alliance and initially released in 2008. As of 2013, up to six games has been released on Google Play, with Sonic Advance available only for Japanese android customers. Another game, Sonic Dash, is planning for Android Release, but due to issues with the android devices, it's under development since.

List of Games

 * Sonic the Hedgehog
 * Sonic Advance (Japan Only)
 * Sonic the Hedgehog 4: Episode I
 * Sonic CD
 * Sonic the Hedgehog 4: Episode II
 * Sonic Jump
 * ​Sonic Dash (Under Development as of August 13, 2013)
 * Sonic & SEGA All-Stars Racing

Trivia

 * The Android Market was renamed Google Play or the Play Store on March 6, 2012.
 * The port of Sonic the Hedgehog 4: Episode I is more like the iPad version than the iPod/iPhone version.
 * Oddly, this version of Sonic the Hedgehog 4: Episode I is shown to only be 1.2MB. This is due to the game having to download all the additional data upon first startup, eventually clocking in at around 40MB.
 * Currently, the smallest Android handset in the market is Sony Ericsson's Xperia X10 Mini (released in 2010). The biggest is Samsung's Galaxy Note (released in 2011).