Fun iPad games I've been enjoying are:
Warhammer Quest - fun.
Star Wars: Knights of the Old Republic - the old RPG just came out for ipad- currently on sale for $5 bucks.
Mystery Room - fun puzzle/adventure game - first couple episodes are free.
Walking Dead - adventure game - first episode's free.
Star Wars Angry Birds is free right now too - it's a good one.
If you ever liked Magic the Gathering, the 2014 version is out. Base is free, I think you pay to unlock different modes.
You just missed a bunch of shit on sale for Apple's 5th year anniversary. I dunno, rock on! I play tons of board games on the iOS. Dunno if you'd be into that, but my current faves are Ascension, Agricola, and Lost Cities.