I am currently working on graduate school for mathematics. I have a laptop that I use as a tablet currently to take my notes by writing on the screen with a stylus, since typing up math is obviously out of the question. What I was wondering is if anyone has any experience using an iPad + Stylus to take class notes, write up assignments, etc, especially for math/hard science/engineering classes. If anyone has done this, if you wouldn't mind spending a few moments letting me know what the experience is/was like, that would be great. Specifically, I am hoping there is good tablet-like software that will allow me to organize and page through my notes quickly.