I'm going to take mine to work, bust it out, when someone asks me what I'm doing I'll say "just taking some notes" and start scribbling on the screen with an Expo Marker.
Why? Anyway I guess I'll have to stop and check swipe out but I'm thinking it's something that takes time to master. I'd be faster hunting and pecking.
I have seen it in action on my wife and daughter's droid phones, looks cool. It is a lot easier (I think) than the "hunt and peck." According to my wife it is better when done in portrait though.