Great Questions.
The TGM Summits were all taped.
The 2nd Summit's Videos (last year --2006--), have not been released as of yet.
This year's summit will probably be released at the same time as 2006's.
My personal favorites:
1. The Italian Stallion's talk at the first summit. The Manzella Matrix unfolding live. It's sorta like Mark Twain talking about his youth on the Mississippi, and nobody thinking, hmmmm—this might be a good book. Classic.
2. Both Aaron Zick talks. Science trumps Kool-Aid.
3. This years Joe Daniels talk on the REAL place to draw lines for elbow and turned shoulder planes. Awesome, thanks to some guy who keeps asking and answering questions.