Cardinal Quest has been submitted to Apple (I believe for iPad only). It's a very enjoyable, smaller roguelike. Main game for PC/Mac is on sale currently for $2 if you want to check it out. Also there's a free flash version to try out. http://cardinalquest.com/
Very cool - I've played this months ago on PC; definitely one of the better Rogue-likes, and very fast paced.
Yeah we've got some great rogue-likes coming out on iOS soon. Can't wait for this, Dungeons of Dredmor, and the new collab between Dinofarm (100 Rogues) and Ido (who made Cardinal Quest), Auro. Oh and apparently someone is trying to port ToME 4 to iOS and only has a few hangups as far as getting it to compile with the iOS SDK. That would be the ultimate - that game is incredibly deep. For those who don't know about it: http://www.te4.org .. Great big and epic rogue-like (I recommend playing with the OldRPG Tileset and Darkwood UI add-ons).