Samsung Vibrant 4G is a Galaxy S offspring that runs Android 2.2 Froyo and has a front-facing camera for video calls. Samsung Vibrant 4G will be exclusive to T-Mobile, U.S.
Samsung Vibrant 4G has 4-inch Super AMOLED screen, 1GHz processor, 5 megapixel camera with 720p video recording and 16GB internal storage – same as the original Galaxy S.
Along with the regular connectivity options, the Vibrant 4G is capable of 21+ Mbps HSPA speed – easily the fastest T-Mobile US smartphone. [source]