Valve goes Viral with Portal

Here's the site http://www.aperturescience.com/ and it's like a DOS prompt that you can play around with. All I've done so far is "dir" which gave me the apply.exe and I excuted to come up with this screen.

I'm farther along into the "application" I think that's what it is so back to it. Enjoy. :)

EDIT: I finished it and even though I entered my UIN correctly it said I was wrong...unless I was suppose to add L to the end of it I dunno know but it went to a screen that was panning a room. I don't have a shoot of it because I accedently closed the window.

I don't think I did enter it correctly after going back through, it appears that the numbers change every so often in your UIN number. bah. :p