I suppose NGH will be used for commercial purpose, collaborating with cellular technology to improve coverage. There will still be individual WiFi AP/ Router being used by various parties. For example, an independent coffee shop deployed Hotspot for their customers. I hope the flooding of NGH will not affect the service quality offered by the independent coffee shop.
This is nice as long as the carriers don't flood the ISM bands with closed Wifi networks. I would be willing to bet that this is going to become an issue in urban environments fairly soon. Free Wifi is a serious competitor to them in the growing data communications market segment.
It will be very interesting watching the transition to NGH. I applaud these efforts and hope they are very successful. The current Wi-Fi experience is good but definitely needs improvement, especially in the areas of accessibility/login and security.