I just finished a memory game for Synaptop a couple days ago. You can check it out at their website http://www.synaptop.com. It's in the Synapstore listed under "games" (it's free).
It can be played single player or multi player. The latter of which means players will take turns, while finding a match grants an extra turn.
Here's a screenie:
And here's one showing multiplayer:
hmm, would it make it easier if I shrink the screenies?
Now with an external page: http://www.synaptop.com/synappstore/app ... /ID-254518