I have a really great idea for a free app that has the potential to be extremely profitable. I've been successful with several other large projects in the past, and am very confident this could be my next big thing. What's the next step from here? Is there a site out there for iPhone developers looking for work? Do they usually take a static fee or do they want part of the profits? Im not sure of the best way to go about getting this done. Thanks in advance for your help.