I have a list of more than 25 items that I would love to work on, but have little motivation without someone willing to help out. I don't necessarily want to form a startup on these ideas, just get the ball rolling and see where it leads.
I would like a site that enables me to find others and create prototype apps in a matter of days, almost like a flash mob. It should bring together graphic artists, designers, developers, and specialists as seamlessly as possible. I think this would work especially well for mobile apps, where project size is often small enough that a 3-4 person team could finish a reasonable version 1 in a weekend.
Example: I want to build a mobile app to answer the question "Does this fit me?" The app would enable users to scan a bar code, upload if it fits or not, get predictions about if it fits or not, and receive recommendations on other items that may fit.
I have no idea how the design should look. I have no idea how to write iPhone apps and limited Android experience. I don't have a lot of experience building web applications. I can't do graphics for the life of me. However, I have a TON of experience in AI and data mining, and what I imagine to most people would seem like the "hard part"-- predicting if something fits, recommending similar items, etc.-- is actually the fun part to me. So I need a designer and an iPhone/Android guy with a free weekend.
If we planned on selling the app, then the site could optionally include some auto-generated legal code for agreeing to revenue/equity split. That would make it more of a flash-startup idea, though.