If I pay for it in the (currently in development) Mozilla app store, that means I can't use it in Chrome. Is this really what we want for the web?
FWIW, this is not the model that the Mozilla "app store" proposes. You will be able to buy apps from any store, and then use them from any browser irrespective of which browser you originally bought it on. Part of Mozilla's OpenWebApps work is to define the auth flows in order to make this possible.
FWIW, this is not the model that the Mozilla "app store" proposes. You will be able to buy apps from any store, and then use them from any browser irrespective of which browser you originally bought it on. Part of Mozilla's OpenWebApps work is to define the auth flows in order to make this possible.