BoardGameGeek recently had a post on iOS boardgames. VERY good post: http://boardgamegeek.com/blogpost/6535/ ... gift-guide
I recently added to my boardgame collection on the iPad. It has become a genre I am very interested in. My recent additions are all on-line multiplayer if anyone is interested in playing (through GameCenter). I have yet to spend too much time with them.
Carcassonne (didn't get expansions yet)
Reiner Knizia's Through the Desert
Reiner Knizia's Tigris and Euphrates (still reading the rules)
The online addition to Neuroshima Hex is still not available and now is set for February. In the recent sales, I finally purchased the two downloadable armies. Neuroshima Hex is 99 cents (USD) until January 1st and army downloads are both 99 cents as well.
Also, I still highly recommend Ticket To Ride. It has since been released for the iPhone/Touch and is a very inexpensive 99 cents. All iOS devices can play together, so if anyone is interested, let me know. The limitation with the iPhone is it is one map only (basic USA), and does not contain any of the downloadable content/maps.