Sun releasing open source hardware designs starting with Niagara

Sun is doing something that no other major hardware vendor has done. They’re releasing the plans for their Niagara design as open-source. Yes, that means you can hack the hardware and chips to your heart’s content. This is the first design in the OpenSparc project that is licensed under GPL.
We’ll see where it goes, but with the age of MAKE and other great hobbyist type groups, I would imagine this will open a whole new door for open-source.