Web vs Native: It Ain't Over 'Til It's Over

The web has evolved from a document exchange protocol into a platform for rich internet applications. But there's much more to the web than video, canvas, and a hundred other APIs. There are unique, underlying, principles for both the technology and the evolution of that technology. As the web faces growing challenges such as a proliferation of form factors, sensors, and interaction styles, will these principles help or hinder?