OK couple of questions for all you people....
I'm looking at getting our enviroment up to Exchange 2010, currently at exchange 2007. Does anyone know if I can take a Win2k3 64bit Exchange 2007 box and upgrade it to 2008r2? And then run the standard upgrade to Exchange 2010?
If not, I can build a new 2008r2 box with Exchange 2010 on it and perform the steps in KB22601-How to migrate the BlackBerry Enterprise Server 5.0 from Microsoft Exchange Server 2003 or 2007 to Microsoft Exchange Server 2010
Now, once the BESAdmin mailbox is moved....or any of our bes users mailboxes are moved to the Exchange 2010 box will a handheld activation be required. I'm guessing for a little while I will be running a mixed exchange 2007 and 2010 enviroment until all mailboxes are transitioned.