Some nights, I lie awake at night, thinking about native clients for Android and iOS, and then I think about the huge, terrifying, time sink of a such a thing.
And then I start thinking about a mobile web version, and switching to canvas rendering... which probably wont be as nice as SVG rendering and a huge pain in the neck as well, so I go back to a native client (shit man, I got OpenGL skills, did it for years...), and thus the cycle continues.