So Microsoft has simple, standard, large, and complex Exchange 2007 environment deployment scheme. We have a simple Exchange deployment. I was wondering what's the largest have you guys deployed in Exchange and what the difficulties that you guys ran into. Thanks.

Why do you think customers are going right to Exchange 2010? Besides DAG, what are the key points of 2010 that you have seen so far?

How hard is it to deploy a UM on both Exchange 2007 or 2010? I have not seen this work in a production environment. Thanks.

Neil, Can you provide a sample on where you had difficulty with small deployments. What about UM? Thanks.