The smart phone features a handy scroll wheel (a la BlackBerry), so you can easily navigate the 8525 with one hand. Nice. There's also a push-to-talk key, but this feature won't be activated until early 2007.
The Cingular 8252 one-ups its predecessor, the Cingular 8125, with its 2-megapixel camera. There's also a built-in flash, a self-portrait mirror, and a lever to switch to macro mode for close-up shots.