Hi,
It's a fairly short brief but having worked on several similar projects, it's something I'd be comfortable taking on.
I'm a UK developer and have created quite a few high end mobile games for clients such as EMI, Pepsico, and Nickleodeon. I've used box2d physics engine both in flash, iOS and Android so this project should be relatively straight forward. I'll send a PM with details of my portfolio.
Please do not hesitate to come back with any questions you may have.
Best regards,
Mal