i haven't got one yet, but i was playing with a ux50 at circuit city a couple of days ago checking it out and thought i'd just mess around trying to connect to the internet via the bt connection on my T616 on at&t. had it up and running in a couple of minutes and i've never used a palm os before to do this.
i was thinking of getting a treo 600 but instead i ordered a ux50 today. how easily i got it to hook up to net was the big factor. it looks like a great machine that along with my T616 will answer a lot more questions than the treo. can't wait to get into it. and from the sounds of the raving on this site i'm glad i'm getting one.
creator8, you won't regret it.. I didn't think I'd get so attached to mine so quickly, but it's really helped me get organised too.. I know that's kind of the point of a PDA, but this thing's really a joy to use..
Web browsing on it's great too. ^^ I use mine for wordsmith largely, and doing that keeps the battery running a surprisingly long time..