Every so often, I just take a look at http://www.triscend.com/ for old times' sake to see if it's still there...

I had not head of this lot before this afternoon (UK time), when I saw them mentioned there on the remnant of the former Triscend site. Thus I assume that they must have some sort of agreement from Triscend and/or Xilinx...

Looking at their site, they also seem to have the FastChip development software - this would seem to possibly tie-up with some recent discussions I've had elsewhere regarding FastChip, and makes me suspect that it may well be a kosher deal...
http://www.zylogic.com.cn/english/tools01.htm

It certainly looks like Zylogic want to make a go of this, unlike Rochester - who just seem to be after selling obsolete chips.