Android/ Iphone game developer

We are looking at making a simple and fun game that can be downloaded through appstore or android market. The basic idea is that it involves a trampoline. You do tricks and jump high or far to get your points. More detail can be given or discussed when we get in touch. It should look somewhat like angry birds and have at least two levels, preferrably more We are thinking of two versions of payment. Either have a free version with our logo on it where we pay per download and the users themselves pay for a version without the logo. We could also pay upfront for the game.