I'm not so hyped about it.. YAC isn't special anymore, right?
Well, hanzac's GPU miner doesn't perform especially well compared with mtrlt's normal scrypt+salsa kernel for mining other scrypt coins on the same hardware. Hanzac's OpenCL kernel was already mostly released way way back in this thread, he just needed to fix a few bugs. Anyone that wants to mine YAC really fast on GPU's will have to do a whole lot more than just port the scrypt+chacha code from the scrypt-jane library to OpenCL, which is why I've been maintaining for a while that there's probably many GPU implementations out there that can mine YAC, but probably very few (but at least 1) that actually do it fast enough to be worthwhile.
I tested it long enough to mine about 5 blocks of YAC then switched my GPU farm back to mining LTC.