I think it is a good idea to just let him speak to these discussions about supporting AMD/ATI cards and not just engage in banter one way or another.
the last ATI (now AMD) card I owned was a Radeon 9550 I think (2005 timeframe)
Also I am not familiar at all with OpenCL. But I consider myself really proficient in CUDA.
I own about 20 nVidia cards (but not all are currently in service).
So why is it I should support/improve AMD mining? It would cut into my nVidia mining profits.
Like, seriously. Supporting both vendors would have the same effect as supporting none.
It wouldn't shift the balance of power in favor of anybody.
Christian