I'm wondering what number of chips it has; should be just 4-6 chips, probably on the higher side, though, as they need some pretty fine tuning to achieve 500GH/s on Compac F sticks.
I'm also excited to see these changes to cgminer by kano. We will have to look into individual chip tuning as well, once the single-chip device works and we try out the first multi-chip boards.
Im pretty sure the cgminer screenshot in that thread shows its 6 chips. The decent BM1397 (suffix AI and AG, I believe) are like $15 each new. Hopefully cheaper in quantity. I guess well find out soon!
I assume individual chip tuning means changing the hash frequency separately for each chip and then seeing how it performs. AFAIK cgminer currently only lets you change the frequency of the whole chain.