The Nokia 6350 is a fairly simple 3G clamshell phone with the interesting addition of a GPS receiver.
This is a tri-band 3G phone, supporting 850, 1900 and 2100 MHz WCDMA. This means that the Nokia 6350 can be used by AT&T customers when they travel worldwide, and as you might expect this is backed up with quad-band GSM as well.
The built-in GPS is paired with AT&T's Navigator application, although the small 2" QVGA screen isn't ideal for this sort of task. The 6350 does give audible turn-by-turn directions, so it is possible to use it in a car using audio prompts alone.
This is a Series 40 device, using Nokia's popular and simple non-smartphone operating system. All the usual Nokia features are here including a music player, web browser and email client. In this case, the standard Nokia software has been enhanced by some AT&T specific applications for sharing videos and accessing multimedia.
The Nokia 6350 has stereo Bluetooth, microSD expandable memory, a small 2.5mm audio socket, and integrated handsfree speakerphone. Charging and data transfer is done through a microUSB connector, and there is also a small 128 x 160 pixel external display with dedicated media keys underneath.
It's pretty lightweight for a 3G clamshell, weighing 3.61 ounces (or 103 grams). Talktime from the 1050 mAh battery quoted as 4 hours on 3G with 14 days standby time.