http://a3.mzstatic.com/us/r1000/060/Purple/v4/b8/76/19/b876194c-2aee-f6f9-9e14-bd1240dafbde/mzl.fjwukqve.320x480-75.jpg
This is a ridiculously simple game, but I'm hooked! I recommend it as a time killer.