iPhone App Game Developer with Previous Experience

I am looking for a talented developer who has experience in coding iPhone games and passionate about games. You must have worked on mobile games and have existing ones that are available for download in your portfolio. You also have had previous experience developing games and putting games onto the Apple app store. My New England-based company is looking to develop a simple 2D game utilizing the iPhone's touchscreen. (more details will be provided after an NDA agreement is signed). Developers will be building a free lite version and a possible full version of a game. Developers must be easy to communicate with, accessible, and able to communicate technological terminology in plain English. Immediate responses to questions and suggestions is crucial. Developers must also have experience developing games with animation and music. Ability to incorporate advertisements and buy in-game currency is a must. I need someone who is very experienced in coding for iOS to create a feature rich, nice looking, mobile app. Must be able to provide beta versions for testing during different stages of development. Must be available for brief pre-development planning to finalize details of game. Must be ready and willing to walk through the development process step-by-step with me as the game is being developed. Good communication is a must. Thanks for taking the time to read this, I appreciate it.