Just wanted to pass along this to those thinking of going to a Treo 680 from Cingular. I've had the 650 for a couple of years and made the switch last week. I'm happy to report that both the APDL and Palm Logbook Pro programs both work flawlessly. Yes, I know there's really no change in the OS on the newer 680, but I figured I'd let you know that everything is working well.
Cheers.
Cheers.