In principle, I'm opposed to it. I don't like a lot of DRM practices, and I hate how DRM interferes with our ability to build archives of today's digital culture for future generations.
The thing is, though, DRM exists. And it's going to keep existing. Right now, content companies aren't comfortable putting things online unless they can use something like Flash to lock it down. So, the result is the DRM we were going to have anyway will now work with browser-native technologies that are more secure, efficient, and accessible.
I see it as a net win, even if it's not the outcome I'd have preferred.