ICYC, iPhone Pwnage 2.1 is out and works like a charm. My phone seems more stable, but it's only been a few hours since I've done it, so we'll see. I'm hoping it addresses the slowness and increased application crashes I'd been experiencing since going to 2.x. That being said, the wireless Exchange syncing (which also works with Zimbra) has been totally worth the other instabilities, and why I didn't really consider going back to 1.x.