Or you could just run native software...
I dunno, I don't get the point. If it gets rid of the dumpster fire that is JS applications, good, but it'd be better if the web could be for documents and applications could be for applications.
I'm too cynical and I've seen too much to believe that it'll be silver bullets and rainbows.
The write-once, run-everywhere idea always falls down, and pushes everything to lowest common denominator shovel-ware.