Despite Apple's claims to the contrary, a test by a forum member at Weiphone suggests the iPhone 3GS may already have enough performance to smoothly play full HD video. By manually copying over videos using file transfer apps on a computer and the iPhone, the community member says he could play up to a 1080p (1920x1080) clip at 30 frames per second at up to a 35Mbps without any lag or stuttering.
