Wow. Can you clarify? Are you saying something like Google docs is crushing Microsoft Office? What DOM/XHR app is crushing photoshop?

I think there is a new class of "apps" that are emerging as web based, but they are creating a new segment as opposed to crushing an existing one.

First, JS & HTML are much more popular than Windows APIs. Second, I think johnrob meant that the DOM is more sane than most "desktop" APIs for laying out apps, not desktop publishing layouts.