Attending JAOO

I will be attending the JAOO conference the next couple of days. It is my first time, but I have high expectations. I am not sure which sessions I will attend, but of course the opening keynote by Anders Hejlsberg will be a must.

I find it hard to choose - there are so many interesting subjects and speakers; and so little time ;-) If you are going to JAOO, feel free to drop a comment with suggestions on which sessions is a must for you, and why.