I've used the T-Mobile Dash for about a week now and it is the most solid handheld I have ever used. For ten years I have been a dedicated Palm user. After getting tired of dealing with the bugs in my most recent two PDAs-a Zire 72s and a Treo 650, I decided that it was time to break my habits. My biggest surprise is the high sound quality. It is much better than on my old Treo. As well, I find that the email program is easier to use and the web browser faster (and more compatible) than Blazer, even on EDGE vs EDGE. The calendar feature is not as easy to use and the memo feature is burried. This said, I am surprisingly happy with this device.