What a piece of junk and a huge waste of my time. I spent 2 days trying to make this work and found nothing but problems.
Especially with 1-Pass (
http://www.omegaone.com/pass/default.htm)
It caused the whole thing to lock up, asking for the Windows Mobile password (of which none was set). Had to to a HARD RESET to clear everything out.
Re-installed WM5 and ActiveSync again, and tried to use Pocket Informant (release for WM5). It kept producing Windows errors.
WM2003 was working just fine with no problems. What a huge waste of time. Save yourself, Don't upgrade til they get it right.