Check out the blog entry from John Westworth on Exchange 5.5 Migration Assistance If you're a gold or certified partner in the UK, you can get Microosft speaker support for seminars you may want to run on Exchange 5.5 migration assistance given it reaches end of life support at the end of this year. Be sure to talk to your customers about the built in mobile features of course that let them connect to Windows Mobile devices seamlessly and the forthcoming improvements from Exchange SP2 and MSFP.