I'd guesstimate that it is tied with 60GHz femotcells and ISPs. Graphics at 4K+ resolution and 120Hz+ refresh rates does not seem viable for many years on mobil

I'd guesstimate that it is tied with 60GHz femotcells and ISPs. Graphics at 4K+ resolution and 120Hz+ refresh rates does not seem viable for many years on mobile platforms, but indoor positioning and high-bandwidth streaming provided by a device that takes the place of your WAN/LAN router could possibly work. Time-sharing high-end GPUs could also be quite economical, and give ISPs yet another revenue stream. All the infrastructure needed for this already exist in a form which offers barely adequate performance. Good performance should be just a generation or two away, and then things should get interesting.