I used a bunch of Treos (600, 650, 680) before getting a Blackberry and I can say from experience that Treos suck in general. The one thing Palm-based Treos have going for them is threaded SMS. That's sweet. But it's not worth carrying such a brick, especially one so unstable as it resets/freezes/crashes with regularity. Blackberrys just work, all the time, and work well. If you want a serious communication tool then the only real choice is Blackberry. I've fooled around with Nokias, SonyEricssons, Treos, and a host of others. None equal the Blackberry.