So far I'm liking it well enough.  As with all PDA's, the keyboard is not optimal for written composition, but I like it better than any other hand-held I've tried.  I really like the iPhone version of Safari.  It helps to have the larger screen, but what's really nice are the zoom and scroll functions. So far I've only found a few websites that don't work in the small browser. 
The native mail app is okay, but I don't like it with gmail. It doesn't offer any way to archive conversations, and I don't see a way to search the archive. Which is fine, since gmail works great in Safari.
Things to try...
- Bluetooth headset
- Bluetooth sync (if that's possible?)
- Downloading/installing new apps
