Nice job; I've been debating on whether or not to get my hands on some FPGA boards rather than GPUs but I'm not sure what some of the best choices are nowadays (considering Spartan-6 chips are a bit dated). Any suggestions like maybe the artix-7s?
I agree that the Spartan-6 chips are outdated. That was actually why I created the bitstream. I was hoping to find other devs that wanted to collaborate to push the Spartan-6 further and breath a little more life into these ztex boards. I didn't find any so I just decided to post what I had. The newer chips/boards are certainly better, but I'm not sure anyone is creating bitstreams for them. Maybe you can lead the way :-)