So far I did find one workaround. It's not pretty, but this setup does work. I'd still like some replies with direct sync between Outlook 2010 64 bit and the phone without going through Google, if such a thing exists.
It's a two-step approach. Sync Outlook 2010 64 bit with Google, then sync Google with the phone. The bad news is you can't sync by plugging in the phone to the desktop as that will erase contacts and calendar entries. The good news is once setup, you no longer need to do a wired manual sync - both steps happen over the net automatically.
To get the Google-to-phone sync working:
Setting Up Your Windows Mobile Phone for Google Sync : Google Sync - Google Mobile Help
To get the Outlook 2010 64 bit to Google sync working, you need gsyncit for $15:
http://www.daveswebsite.com/software...download.shtml
You need this because Google Sync does not support Outlook 2010.
Note: when configuring gsyncit in Outlook, be sure to set contacts to store in the My Contacts folder of gmail or they won't sync with the phone. Also, be sure to set a date range for the calendar or it will sync all your old events. The phone defaults to two weeks old, but gsyncit defaults to all past events.