For those of you who have an interest in Unified Communications and want to hear and learn more about Office Communications Server 2007, Exchange Server 2007 SP1, RoundTable, Office Live Meeting and Exchange Hosted Services, you may want to look into attending Interact 2008 in San Diego. This is the inaugural event so I don't have any past history or experiences to share.
I just recently found out that Terry Myerson, VP of Exchange at Microsoft, will be delivering the keynote session. His blog with a registration code is here: http://msexchangeteam.com/archive/2008/03/12/448427.aspx.
Also, in case you were wondering, I will not be able to attend the event myself, but I really wish I could be there.