Oh, I do (and I have a nicotine addiction to feed too)! But I do think that Saturday's (2h25' out of 8h25' total summit time) are excessive when we are turning down talks because there is no more space.
I thought that too, but there's other constraints. One of the rooms (track 1) isn't in the same building as the other three (about 5 min walking), moving ~400 persons isn't easy, so we had to add some breaks after the keynotes and LT sessions.
Valério Valério
www.valeriovalerio.org