The PC release of The Cave has some high and low points of the game, with an average settling around 68. The iOS port isn't that great either, with some confusing touch interface elements and an oddly low frame rate on my iPad 4. Who knows if that will (or can) be fixed with updates, but if you were waiting for an iOS version of The Cave, here it is.
The Cave should be available shortly, at 11:00 PM Eastern. For more on the game, check out the thread in our forums.
International App Store Link: The Cave, $4.99