[simias]

I admit I'm mostly familiar with the Intel (formerly Altera) side. There are no restrictions at all on the Xilinx side? That's pretty neat.

[latchkey]

You sign up on their website and click ok on the long eula nobody reads and then click download. So yea, there are probably restrictions, but they don't have a paywall in front of them. This isn't legal advice at all.