WebRTC is coming, but seems to have avoided much take up from the people I talk with. I think part of the reason is lack of user education. People still seem stuck in the old fashioned "must download and install app" mentality .. but it'll come.
Time will tell whether this is another Microsoft stab at the browser wars, but they'd be foolish to try it IMHO.
Still, dumber things have happened ... like putting servers in walls...