I'd say MIT for the code, and license the graphics, sound, etc, assets under a separate noncommercial license. This'll let people peek under the hood, learn fro

I'd say MIT for the code, and license the graphics, sound, etc, assets under a separate noncommercial license. This'll let people peek under the hood, learn from it, and use it in their own app with fewer legal questions as far as what's allowed and disallowed.