The 5610 XpressMusic is a whole different ballgame from the 5310. This 3G slider is feature rich with a slide lock key in the center that switches between the phone and music player. The 5610 is also encased in black (here and there) aluminum with red or blue accents and the same features as the previously announced 5310, but the screen is a smidge bigger at 2.2-inches and comes with a 3.2-megapixel camera. Talk time is set for six hours with 13 days of standby. Look for this hot new mobile to ship Q4 for a little over $400.