WebGL in IE11 and the future

So apparently, WebGL will be supported in the next Internet Explorer. That means all major browsers will support this now in the very near future. Will this open a new era for games, playable directly from the web? I think so.
Basically, I believe you only need to use a framework like my WebGL game engine to create your games and be able to run your games on all devices and operating systems, soon. But maybe I'm wrong, let's see. Exciting times :)