UPDATE: 11/30/2010 I JUST DR'ED AGAIN USING THE SAME METHOD AND FILE AS BEFORE AND MY USB PARTITION REMAINED INTACT! SORRY FOR ANY CONFUSION!
I decided to Dr. my Pre 2 just to make sure everything worked like it did previously... IT DOESN"T.
Two important notes.
The Palm website now says to put your device in recovery mode in order to Dr.
It doesn't appear to be a suggestion. I tried twice without doing it (like I always had on my Pre minus). It would connect and get the USB icon on the screen and wait about five minutes with the charging message in the Dr. app before erroring out. I put it in recovery mode and it worked like a champ.
Unlike the later Dr. version from 1.3.x on, the WebOS 2.0.1 Dr. DOES ERASE YOUR USB PARTITION! So make sure and back up your stuff BEFORE you Dr.