I know these issues may not apply to many people and aren’t really deal breakers, but there were a couple issues other than those I previously mentioned that bugged me about the Treo 650 and are not present in WM 5.0.
I had to recategorize my Outlook Contact categories because the Palm OS limits the number of categories (or else throws everything into unfiled) and limits the length of category names. Also, adding photos to my contacts in WM 5 and have them sync to Outlook is very cool.