Went to two tutorials today. The first was on code generation. It was mildly interesting, but probably could have been about half as long.
The second was on an extension to the Java language called "X10". It is meant to help Java application developers take advantages of massively-parallel system. It was extremely interesting and could have been twice as long. (Ok, I would have gotten fatigued if it was twice as long. But they had enough good material to have a second session if they had so wished.)