This could really turn into a messy war versus the crippled but strangely compelling ChromeOS, which once croutoned becomes radically more useful. Something that doesn't have those restrictions out of the box is going to have a clear advantage.

The problem from a dev point of view is just what security model for apps are they going to go with? I haven't seen any discussion about the exact details for how they plan on managing the app packaging, separation and permissions fun that exists on mobile today.