Playdek has ported Looney Labs' card game Fluxx to iOS, releasing it on the App Store today for $2.99. Unlike most card games, Fluxx's rules are instantly understandable, because they're printed on the cards.

In fact, those self-evident rules change constantly as more rule cards are drawn, leading to situations where the winning conditions also change, and a losing hand may instantly win at any time.

The iOS version includes asynchronous online multiplayer for up to four, single-player modes, and "pass and play" single-phone multiplayer.