Konami's hugely successful rhythm game now for the palm of your hand
Just when you thought Dance Dance Revolution might be on its last legs, Konami has released a new version of the game designed for handheld devices. Now available in the app store is Dance Dance Revolution Dance Wars, a miniaturized version of the arcade and home console sensation where you'll substitute your steps for taps on the screen. The game is free, but supported with microtransactions, and should run on your iPhone 3G (or later) and iPad.
This kind of defeats the allure of DDR for me, but I know there's always been a certain type of person who would play the game on their PC with a keyboard. Takes all kinds.