Yesterday Apple approved Maximum Memory. (Actually version 1.1, but I didn't announce version 1 because I wanted to make a couple of tweaks before announcing). A matching game with three different board sizes: 4x5, 5x5, and 6x6. Game Center integration allows you to compare your scores with your friends and players around the world.
Free: http://itunes.apple.com/us/app/maximum-memory/id420294224
Apple was also kind enough to approve version 1.1 of the following apps:
Three Lines Video Poker --
This update brings smoother animinations and Game Center integration. (Along with an options to turn off score alerts.) With those changes, I think this is one of the best video poker apps on the app store. Even better it's free.
Free: http://itunes.apple.com/us/app/three-lines-video-poker/id418787366
Hazard Dice --
The granddaddy of craps (a gambling dice game). Now with Game Center integration.
Free: http://itunes.apple.com/us/app/maximum-memory/id420294224
Shut the Box Free --
The old English pub game. New challenge added: 12 boxes (in addition to the traditional 9).
Free: http://itunes.apple.com/us/app/maximum-memory/id420294224
See a list of all our apps at http://yoyu.me (9 free iPad apps in the App store right now!)