I don't like to use buzzwords, but this looks to be disruptive.
Let's take a trip back to 1996 in the Wayback Machine:
"Later this summer, Netscape will roll out a comprehensive Internet strategy that will position its servers and browser as a next-generation Internet-based operating system.
...The only difference technically between Netscape's Navigator browser and a traditional operating system is that Navigator will not include device drivers, [Marc] Andreessen said."
the web browser has now come full circle to being a very weird virtualized operating system, whose APIs rival Windows in size, idiosyncrasies and complexity
Er, I don't think so (on any of those three counts).