You know, the OS from the people who created Unix.

They also had an associated embedded OS called Inferno. Philips actually used Inferno in an Internet telephone. Funny that it wasn't a success. It cost something like $600 or $800 10 years ago, and took literally minutes to load a web page at modem speeds.

Is it still being developed?

IIRC Linux was supposed to be a temporary stand-in until the Hurd was ready to go.

It could just be a lot of quantum talk.

That was my first thought - tell the owner.

But what about strictly online websites? I went to a real estate foreclosure site recently (realtytrac.com IIRC). When I clicked a location I got "your browser and OS are not supported". I sent an email to the admin but never got a reply.