Re: future platform support - we haven't made any concrete announcements, because we don't have concrete guarantees about which platforms we can support yet. However I'd say it's likely we can support the Wii U, likely we can support the Ouya (via CocoonJS - they are working on support currently I believe), and I think there's a good chance we can support the XBox One as well, since MS have said it will be able to run Windows 8 apps which we already support. Sony have made nice sounding announcements about the PS4 but we haven't heard anything that involves HTML5/web technology, so it's hard for us to predict how that will pan out.
Monetisation is a different topic really, but we are aware we could be doing more in this area and plan to do something about it soon. Our understanding is that it's easier to make money through IAP than through advertising, so that's what we'd be looking at first.
It should be possible for teams to work on C2 projects - see how to collaborate on projects with SVN.