OK, I readily admit that this will not be of use/interest to 99% of users here, but I'm really impressed by Sun for having taken this initiative, so thought this thread would be the ideal place to post this.
Anyway, the latest version of Solaris is now available free of charge. Solaris is a flavour of Unix from Sun, and imo, probably my favourite version of all Unix releases. It's incredibly stable, has oodles of features, and it basically rocks!
You can get a version for Intel x86 from the link below:
http://www.sun.com/software/solaris/...xpress/get.jsp