Write an iPhone application

Hello freelancers, I'm looking for Unity3d professionals who can re-skin an existing application and develop a few features for my dots and boxes game. I need a professional who can do game designs and programming. Freelancer must be available for future gigs to update application. I will submit official requirements to the approved bidder. Delivery time: 1-5 weeks WORK DETAIL. 1. Design logo of app name (submit before closing project). 2. Design icon and screen shot for iPhone (submit before closing project). 3. Re-skin full gameplay graphics as well as gui (3d pre-render assets preferably but subject to change) see attachment for asset style. 4. Include Multiplayer feature (facebook api) as well as chat function with opponent. 6. App must run on simple backend that allows you to store game state and a push notification mechanism. 5. Assist in music and sound selections. 6. Please submit app for testing before closing project. 7. I will upload to play store my self. 8. Must be available for future gigs for performing updates (if everything goes smoothly). Skills require : C#, Unity3d, Graphic Design, Game Design, Facebook api, backend solution