I don't know how I feel or what I think about running mission control from a browser. Seems like it'd probably lead to lower defects to build something very simple very close to the metal — and probably not at a prohibitive level of cost, either. The advantage would be cutting out the OS, the desktop environment, the fancy GPU software, the browser, the JavaScript interpreter, the JavaScript dependencies &c. from the critical path. The disadvantage of course would be running homegrown software which performs some (but not all!) of those functions.

Maybe I'm wrong, though. I'm certainly open to being persuaded.