I know that Mark posted this previously but wanted to ensure it had it’s own post as this is very important for our customers.
Blackberry is now supported with RIM.
All three of these updates are available to customers of Exchange Server 2010 and BlackBerry Enterprise Server v.5.0 with Service Pack 1 at no cost. BlackBerry Enterprise Server v5.0 Service Pack 1 and Maintenance Release 1 can be found here: http://www.blackberry.com/support/downloads
Additional information on the solution requirements, preparing the BlackBerry environment for Microsoft Exchange Server2010, can be found on the BlackBerry site here.