so if i understand cbuchner right its only a matter of time better performing miners on all platforms will be avaiable
it took us longer than a week and lots of debugging to come up with the new implementation. It took some serious brain skillz too.

And no, we don't intend to open source this.
I'm still trying to wrap my head around the idea that mining with a proprietary GPU miner closed to other devs is a good thing. I can't really seem to do it.
I missed the part where you had a constructive suggestion for how to pay for weeks of work by two professional and highly skilled developers.
Not entirely sure how to respond to this except by saying Im offering a 20k bounty for AMD and thats 0.2BTC on a better day. Id hope anybody developing for GRS would see then potential growth here and enjoy the celebrity such optimizatiosn would make. Also I hope others will add to my existing bounty or create incentives of their own.
It seems to me the argument you make could apply to almost all bounties for all optimizations of new coins.
Obviously I hope devs feel properly remunerated for their time, even if not today then in a month

thanks
I'm an opensource programmer and I program and mine for fun. I get money for programming on my job.
But I also think that everybody is free to ask whatever they want for their work.
There are "professional and highly skilled developers" who program for free (like myself) and bad programmers who ask for money :-D