If you want someone to do it right,
Wolf0 should be on your team testing miner for AMD GPU's.
I'm eager to see his optimization tricks opensoursed

Wolf0 does it for BTC, he's not a charity worker. At least that's my experience with him and his AMD optimized miner. Usually only big farms can afford his miner

The Wolf and Stephan had a bet yesterday that he couldn't double the power of our CPU miner in an hour. He was only able to get his CPU from about 600 kH/s to 1000 kH/s, so I guess he lost. We all think that still counts and tried to pay him, but he sent his bet to Stephen anyway. Needless to say we're working on implementing that now.
Our AMD stuff still needs a lot of optimization for sure. Once we get it to a reasonable level, I'm sure we'll be reaching out to others on it. The newer Nvidia cards (compute 5.0+) are quite a bit better at mining than they used to be, so I don't think it will be a cut and dry AMD wins. I've even heard rumors (though never seen it) of people making farms out of GTX 750s because they're cheap and power efficient.