Yes, the supremes have let this one be 'fleshed' out in the court systems. It is frustrating and infuriating at the same time.
It just drags it out. I guess it is what we have to expect. It they had more justices on line in the decision, it would have made it much easier for the court to set the framework of the scope of the 2nd amendment. But it still gave us the most important decisions. That it is a right of the individual, and that it is incorporated.