Have you guys seen the HTML5 version of the NPR app? The scrolling is actually smoother in the web version.
Let's not miss the larger point here. HTML5 have become a real option of application development. A business that relies on mobile/tablet form factor should seriously consider HTML5 as the application platform. The cost of porting iPhone/iPad apps to Android phones/tablets is much less with HTML5 than with native code.
Lack of distribution and monetization of HTML5 apps doesn't need to be an issue. A web app can be embedded into a native app to be sold on the AppStore.
[1] It is better than it used to be. There used to be a weird lag at the start. Now it is nearly subliminally jerky. It also crashed when I opened it to check for this comment.