Interestingly, this was the first conference I've ever attended that was paperless, e.g., you got a thumbdrive with the overview, sessions, and all information. At first I was a bit stymied - I'm so visual - then hit upon opening the day's schedule, saving it as a .jpg, and loading it as wallpaper. Worked great, especially not being on a tablet.
So ... why doesn't Apple make a tablet again?
Yes, there's this third party product out there and here's MacWorld's review - but why not a native Apple tablet. Schools would love it.