HTML5 is eventually going to be running at speeds comparable to native on all or most devices, the tech is still young, but is the obvious choice for the future of cross-platform apps. I don't think Tom and Ashley worship HTML5, they often mention the downsides and failings of the tech, but as with the members of the community here, we want to see this tech adopted by all hardware and as something everyone wants. I think what you're looking for is here in C2 as well. But C2 is really more for games than apps, and I think if you are a serious app developer, you may want to consider learning a programming language and using a more powerful engine.