I will be mostly talking about the Springboard site at the booth and how it can help you plan/adopt/migrate to Windows 7.
I'll be there with a few other fellow MVPs and Stephen Rose. Last year, we had Mark Russinovich stop by for a while. So, look for me in the Windows Client area!
Also, I will be on a panel for OCS 2007 R2 voice deployment 'war stories' during the Wednesday morning "UNC06-INT - Microsoft Communications Server "14": Voice Post Deployment" session with Francois Doremieux.
It is bound to be a great learning session, so try to stop by and say hi! I am amazed at the new feature sets and advancements that have been made with CS 2010 "Wave 14" aka OCS v.Next.