It should come as no surprise that MMS is sold out.  See the Microsoft note here about ways to still register.
http://www.mms-2010.com/public/registrationoverview.aspx
It will be a packed croud.  I think my first time has close to 4,000 participants.  Even with the large venue like the Venitian it can be cramped between sessions.  I have been practicing my session.  Let's hope it lives up to everything.  With 3 kids, a bad car wreck, medication and just everything else happening I hope it comes out well.
 
