We appreciate the documentation that you provided, and I do have a few questions and concerns I'm hoping you can help address.
1.) You stated skills for Facebook app development, but also for iPhone / Mobile. Are you looking to develop for both platforms? If so, what is this initial budget for? Facebook or for a mobile application?
2.) Where is the stock data being pulled from? Yahoo Finance?
3.) Same question on the trivia, is the an existing database that you're going to be pulling from?
4.) I do have a concern on your budget - we've develop complex applications, and web platforms in the past and these project does have a lot of potential complexity. I'll say more about potential budget in a private message.