I am carrying a Treo600 and love the Sprint Personal Edition for corporate mail, but when I shut down the laptop away goes my corporate mail. The company is tired of this and they are putting me on a Blackberry.
I live off a Palm Desktop, Calendar, Contact list, etc and scared to death of what is about to happen.
Besides my Sprint service is great all over the country and now I have to move to T-mobile. I will keep you posted on the transition. Right now... I love the Treo and all the functions.