Microsoft have released the “Exchange Pre-Deployment Analyzer“, which can be used to perform an overall topology readiness scan of your existing Exchange environment.
The Exchange Pre-Deployment Analyzer provides a detailed report that will alert you if there are any issues within your organisation, which could prevent you from deploying Exchange 2010.
For example, the Exchange Pre-Deployment Analyzer will notify you if you haven’t deployed the minimum required Exchange service pack on all your existing Exchange servers.
