Apparently, thinking up mini-games for an Iphone/Ipad interface is harder than I thought it would be. So I'm looking for some good and simple ideas from the community.
Currently, I have
Meteor Shower - tap meteors to destroy them
Spaceships - tap spaceships to destroy them, each spaceship fires at you and has different hp values.
Fix a machine - tap colors in sequence ala simon says to fix the machine.
Full disclosure: You'll get credit (and some rewards when we launch) to your idea if I steal it.