Hi Gabe,
I am experienced with Game Designing in 2D only (including perspective view). I don't want to cheat you, thus i am coming upfront. As per your budget for 3 devices, your game must be simple. I have 2 years of mobile app development experience and 7 years of overall programming experience. Let's discuss this further if you are interested.
As far as trust is concerned, i hereby promise to abide by non-disclosure agreement.
Regards
Awnish