I would love to see RubyMotion find a way to open-source its entire stack and still be able to monetize.

Ideas:

- Only charge a license fee if you intend to publish to the app store. True, this would be hard to check, but I think it would let the ecosystem flourish

- Give away the platform, sell premium documentation, screencasts, books, etc. (Although I can't see this generating enough revenue. Maybe when combined with some other approach?)

- Make one kick-ass IDE that's leaps and bounds better than XCode (including a better interface builder). Sell that. I favor this idea :)