I second Battleheart. You can pick up the iPhone version of Final Fantasy 3 or wait for Square to release the ipad version. They have said they are working on it, but no release date. They are also working on FF Tactics for iDevice that was delayed last year so should hopefully come out this spring/summer.
Oh maannn, going to check all these out. Dungeon Hunter 2 looked really cool Tim, and it sounds like you're having a great time so I may pick that up next. Also I didn't even know ff3 was out on iphone, anyone play it... is it any good? Never got a chance to play it on DS.