I am pretty happy with my treo 700wx, and will upgrade this one to a 750 once they come out with the winmo version on sprint.

No antenna on the new devices these days.

I prefer winmo to blackberry, just since I have so many applications that run on it, mapping, gps, stock tracking, etc. And of course, very seemless outlook integration for my 2K+ contacts and multiple calenders.

I have not had any problems with it, and didn't think I was going to like it. The screen is a little small.