I know that the Swiss Code Monkeys (http://swisscodemonkeys.appspot.com http://swisscodemonkeys.appspot.com) have been doing this for about 2 years now. They've

I know that the Swiss Code Monkeys (http://swisscodemonkeys.appspot.com http://swisscodemonkeys.appspot.com) have been doing this for about 2 years now. They've also done http://AppBrain.com http://AppBrain.com, so they're also doing more ambitious projects too.