>By my count we now have, in no particular order...
There's also Corona SDK, which uses lua and OpenGL. Write once, build for Android, iOS, and Windows Phone 8. UI performance is quite good. Supposedly building Mac and Windows desktop apps is coming soon, but HTML5 support was announced a year ago and has not yet happened.
The free version of Corona SDK supports only a subset of the native APIs (albeit an extensive subset that's probably sufficient for 95% of uses). If you want the full set, you have to pay $1,000+ a year for Corona Enterprise and implement your own os-specific glue logic.
There's also Corona SDK, which uses lua and OpenGL. Write once, build for Android, iOS, and Windows Phone 8. UI performance is quite good. Supposedly building Mac and Windows desktop apps is coming soon, but HTML5 support was announced a year ago and has not yet happened.
The free version of Corona SDK supports only a subset of the native APIs (albeit an extensive subset that's probably sufficient for 95% of uses). If you want the full set, you have to pay $1,000+ a year for Corona Enterprise and implement your own os-specific glue logic.