Trivia App Builder Needed for Facebook Social Net. Project

Hi, We need to build a facebook social networking app like a simple Farmville, Mafia Wars that is upscaleable as it grows in popularity. The source could be single but should be running on both Mac and PC Please show me the samples of any apps , games or social networking you have built for facebook We will provide you the trivia questions site file. And all artwork hence your job is just to create the app. The lowest capable bid will win this project. Realistic time line to completion is also factored. In the big picture the aim is to grow this social networking challenge, so there will be weekly paid upgrades to the app and increases in your rate as we grow. Get in on the ground floor. Note : The payment is done in three steps. 50% will be provided once you provide the source code so that we could test it and you need to modify the code if there is any change. needed . 25% released once the app is completed. The remaining 25% will be released only after facebook approves the app. Bid this project only if you are fine with this payment method. looking forward to talking to you . Thanks