Nokia X3 slider sports a 3.2-megapixel camera, a diminutive frame and 2.2-inch screen. Stereo speakers, dedicated music keys and support for up to 16GB of storage via microSD card make for a nifty mobile music device. The X3 also sports an active homescreen where users will be able to see their contacts, friends and current music playing. Music lovers will also be able to continue listening on flights thanks to flight mode.