BlackBerry 8700c (AT&T)

Pros: stable OS, quick response on web due to EDGE

Cons: keys are too close together, a little pricy

Summary: I went from a Treo 650 to a BlackBerry 7290 to now a Blackberry 8700c and I can honestly say that this handheld is amazing. The Treo is deceiving because although it has all kinds of gizmos and extras, the phone quality is terrible plus its operating system is quite clumsy and freezes up more often than anyone should have to tolerate (even though there have been multiple firmware updates). It just seems that PALM tried to incorporate too many good ideas without really planning them for compatibility. WHen I got fed up with the Treo, I switched to the BB 7290 which was much more stable, the keys were easier to use, it was cheaper, and for the most part, did almost everything the Treo did. In addition, the BB devices are more IT Helpdesk friendly than the Treos because they don't require Provisioning.
Today I just picked up my BB 8700 and it truly seems like it was sent from above. It has the stability and simplicity of the 7290 plus the additional perks that the Treo was supposed to have been known for such as great resolution (320 x 240 on 8700c), ability to send multiple SMS messages, seperate talk/end buttons, 2 customizable keys, and automatic backlight that turns on as it senses darkness. The only downside I see to the BB 8700c is that the keys are a little too close together (not as good as the 7290 but not as bad as the Treo 650) and the device is a little pricy. I was expecting to pay about $300 - $350 but right now it is going for $450 (no contract committment). Other than those two minor details, I absolutely love it.