Having very little real pinball experience and not even once been gutsy enough to actually nudge a physical machine (whenever I get the chance to play a real one I´m way too respectful to smack it around), I only learned about bang backs recently:
http://www.youtube.com/watch?v=KB8Xp4PMvbQVery cool. I wonder if that works in the physics model in TPA, might be fun to turn a game on the more notorious outlane-monsters on its head
I hope PP has an elegant way to integrate forward nudging into the tablet version as well.