I got an ipad as a gift and I love it! My buddy/coworker Jim made an awesome art app for it that I've been playing around on. Here's a nice big post of some stuff I've been making.
If anyone has an ipad or iphone go check out "SketchClub" and download it! It's fantastic! You can also upload your art for everyone to see and comment on. :)
http://app.sketchclub.com/