Hey KOIN miners, today we spent the day investigating behaviors that seemed to indicate that someone had developed a GPU miner but the results of our research casts doubt on that theory. Our research indicates instead that the behaviors are better explained by a massive and highly efficient CPU farm that is taking advantage of low priced spot instances. For that reason we have ceased to focus all of our efforts on developing a GPU miner and will instead continue researching all options that we believe could help even the playing field for regular miners.
As of now, the PoW algorithm still appears to be resisting GPU mining, but I want to reiterate what is stated in the Readme of the ERC20 which is that GPU/FPGA/ASIC resistance is best effort, but not guaranteed. Where there's a will there's a way.
Well let's not go challenging others to obtain that willpower. :P