Sounds OK. Especially if they become as big as Rapid ... but to reach $10 worth of downloads means a lot of effort in advertising your links. I think you would do better with some affoliate programs ... :cool:
Super List. Will definately try some of them soon. i personally like http://www.gangstermind.com and http://www.combatgrounds.com. But I have also been playing Travian more recently ... very very time consuming i feel.