It's interesting that all announcements play up the interim CEO's involvement in Firefox OS. I have felt for a long time that it's going after the wrong target in Android, and should instead go up against Chrome OS. Will be interesting to see how the priorities change, if at all.
As for proposing an alternative for ChromeOS, I'm mentoring a GSoC project to turn firefox OS into a Desktop Environment (see https://wiki.mozilla.org/Community:SummerOfCode14#Firefox_OS...) which could be a first step in this direction.
Brendan Eich is, though, apparently.