Windows Exchange Server 2010 and Windows Mobile 6.5 released, Microsoft published a Windows Mobile 6.5 on Exchange Server 2010 deployment guide. The guide contains best practices as well as procedures to configure and connect both worlds.

You can download the “Deploying Windows^® phones with the Windows Mobile^® 6.5 operating system on Microsoft^® Exchange Server 2010″ document here; the related Technet pages are located here.