i think you should contact PrototypeInvest (http://www.prototypeinvest.com/default.aspx) - they are like VC but instead of giving you money they will develop your application (against equity) - now because you have source code it should not take much of a time for them to develop a prototype for a reasonable amount of equity. This option will save you time, money and energy. If you decide to try them then write a review about them over here as more people like you can use them (if they are good). - GOOD LUCK.