I wrote a game for Android called Tap It that I'd like to share with you.  I just put it up on the google play store:

https://play.google.com/store/apps/details?id=bebak.kyle.tap_it

The idea is simple -- you have a deck of cards with a certain number of images on each card. In any pair of cards chosen from the deck, there is one matching image between them. The objective of the game is to recognize this image as fast as possible and tap it. There are two modes of play: time trial and survivor. Time trial is a race to tap through the deck, and in survivor you earn extra time by getting matches and try to get as many as you can before time runs out. 

The number of images on each card can be chosen in the menu. With 3 images per card the game is more about twitch reflexes, while with 10 images per card the game is more methodical and a player might want to rotate his card to see if the match jumps out at him.

I would like to make multiplayer modes for the game, which will be new ground for me. If there are any developers interested in helping me with this I'd be very happy! The source is in the following repository on github:

https://github.com/kylebebak/tap_it

If you download the game and like it please tell your friends about it and give it a little review on the play store, I would also appreciate any feedback you might have. Thanks!