I’ve been following Jeff’s plight for a long while now, and it’s nice to finally see this working. I don’t think it is particularly useful by itself (the GPU power requirements are completely at odds with what the Pi is about), but I think it’s great for the ARM ecosystem in general–and the server market in particular.
For desktop or embedded/industrial use, my money is still on Apple Silicon and Rockchip-like integrated GPUs (although Intel’s N100 and various AMD APUs are doing very well in the mini-PC space).