I have been not been able to sync anything to MobileMe ... iMac at home, or work computer on Exchange. I have tried everything I can think of (the only thing that I've been able to do is get MM to push new contacts to my Exchange work computer, but no other syncing has happened). Also, for the last two days, if I add a new contact or calendar entry in MM via the Web interface, MM deletes it immediately. Have seen lots of posts here with similar issues, but wondering if anyone has actually gotten this resolved. If so, what's your secret?