It looks like the idea is to make it so that every type of app can run everywhere within the browser. Once again, cool, but useless unless these apps optimize for smaller vs larger devices and different storage versions, at which point I don't see the difference from a pwa, unless I'm interpreting this incorrectly? Otherwise every other example on the webpage seems to be really basic like text files, which, as others have pointed out, have many existing apps with robust sync capabilities.