Is it only being developped as the native side for Chrome OS or is it really planned as a all around web binary running thingie? The issue being, nobody should

Is it only being developped as the native side for Chrome OS or is it really planned as a all around web binary running thingie? The issue being, nobody should be developing anything for it publicly until at least 2 competing implementation have been created. But people don't seem to care about that for some reason...