I did some searching and didn't find much on creating a virtual pet. With the products TC(or another) has available what should I get to make a Tamagotchi like game.  Just need 3 buttons.  This a big project for me from the hardware side and programming side.  Any extra ideas would be nice, maybe some kinds of "rumble" vibration feature would be cool. BT connectivity to a possible 2nd unit.  I'd like to keep it as small as possible.