How do I get open windows?

I get really annoyed when I see stupid comments like "proprietary and Unix boxes to x86 machines running Windows and sometimes Linux". How on earth do you qualify Windows as non-proprietary? Where are the open specifications that it adheres to? Why is UNIX (note the correct capitalisation of the trademark) considered proprietary when there are a multitude of open standards from POSIX and the OpenGroup?

I just wish that journalists (always assuming the Register is using real journalists for articles like this rather than odious bloggers like Ted Dziuba) would actually take some time to get their facts straight.

Pedantic? me?