T-Mobile today announced the Samsung Gravity,the phone comes with built-in support for AIM, ICQ, Windows Live and Yahoo chats. A 1.3-megapixel camera, media playback with microSD storage and stereo Bluetooth audio put it in the middle of T-Mobile’s lineup. The Gravity expectedly supports MyFaves calling and in T-Mobile guise comes in either aqua/white or lime/gray color combinations. It should reach shelves by Tuesday and will sell for $50 alongside a two-year contract.