I've recently been using Crank Storyboard and I've been off to a good start. You can run it on embedded devices like ARM Cortex-M series processors, or Linux, i

I've recently been using Crank Storyboard and I've been off to a good start. You can run it on embedded devices like ARM Cortex-M series processors, or Linux, iOS, Android, Windows, with openGL support. It does require a license though. http://cranksoftware.com/storyboard-suite http://cranksoftware.com/storyboard-suite Also someone else mentioned Phonegap and using HTML/JS. I think is a good option but it depends on what your app does and if you're doing mobile app design. I have not used QT yet, but after doing some research, it's kind of a pick your poison type of choice, IMO.