I had been using a Treo 650 and finally got tired of the number of times it froze on me or stopped delivering email for extended periods of time (I am using Good for push email). Love the Palm OS, and think its more intutitive to use than the Blackberry, but the freeze-ups are a big challenge.

Ive currently been trying out the BB 8800 and the BB Pearl and I have to say, I like the Pearl a lot more than I thought I would. I love the form factor and the SureType I think works very very well.

One strange thing though - for all of its reputation as the best email device - when I was using my Treo with Good I would get emails within a few seconds of them hitting our server. With my blackberry I sometimes wait 5-15 minutes (!!!) for the emails to come through from the BES server...so far I have actually found the Treo with Good, when working, to be the more corporate strength email service due to this fact...