from the this-may-be-your-thing dept.
alancronin writes "Valve have released Portal for Linux through the Steam platform. If you have a copy of the Windows version you will automatically have a copy of it for Linux in your account. There are also rumors of Portal 2 coming soon."
The best book on programming for the layman is "Alice in Wonderland";
but that's because it's the best book on anything for the layman.