Just transitioned from exchange 2003 to exchange 2010. Both servers are still up and right now most of the mailboxes are on 2002. For some reason when I migrate a user and then try to use activesync from my ipod-touch with that user it verifies the account and adds it to my account list but i cannot send or receive mail. If i create a new user from the exchange 2010 console i can set up activesync with no problem. Any ideas?