I was part of the Global Game Jam this year. We made an iPhone game that is yes, in the iTunes store. I think that is titanically awesome for only working for 48 hours.
We're working on a second version with a more complete set of art assets, but you can buy a working copy of the game here
if you're interested in playing RIGHT NOW.
Here's one of the player-characters, Damien Vile. You must try to kill your siblings by influencing subordinates to do the dirty work for you.( Gore and murder within this cutCollapse )
And I think this is going to be its new logo, but it still needs tweaking to jump out at you from the app store :D