With the global success of the RAZR, Motorola decided to take advantage of that model and come out with other types of phones. In this instance, they took the razr and made it a slider. T-Mobile brought the Z3 into the North American market. The Z3 comes with a 2 MP camera, bluetooth, A2DP, voice dial, quad-band world support, and music player (though without a dedicated key).

Reviews:
Laptop Mag
Cnet
InfoSyncWorld
MobileBurn






Resources:
T-Mobile
Motorola Support