I have now visited a few law school classes and the amount of non-note-taking activity happening on laptops is really quite remarkable. Solitaire seems to be the #1 selection, though I've also seen a full-screen basketball game, various email, a wedding registry, on and on ...
My favorite was the woman who was typing EVERY WORD the professor said while he was speaking, then as soon as a student opened his/her mouth, she brought up the solitaire screen, the window labeled "FreeCell Game #15042".
Anyways, I recommend to everyone that you sit in the back row to best observe laptop culture.