In other words AMD is in the middle between NVIDIA and Intel, with the sum of doing two half working or half supported driver, i.e. the worst situation for all users. I will be very very happy if AMD will follow the intel way in the future and put more effort on the radeon driver (btw, the radeon team already does wonders being it so small), but it will be usable even with NVIDIA way, it is not the best, but still works.
No announcement yet.
AMD To Drop Radeon HD 2000/3000/4000 Catalyst Support