Linus stated on the Wan show that he thought it would be an interesting idea to show what hackers can see with their virus's. I wanted to post saying that it would be a bad idea. If you give attention to hacking it will just lead to more people trying it out. I have a brother-in-law who constantly hacks as well as lies and manipulates all the time so I know what the receiving end is like. Don't want there to be more people trying this out.
As for anti-virus's there are virus's out there that can't be detected by them or can be detected by some and not others. The databases on these anti-virus's are constantly updated to keep up with new virus's being made but there will always be a delay. Also, they can't really detect a virus on the BIOS or if the hacker has physical access to install things inside of their keyboard or monitor.