For those who haven't seen it yet, here's a link:
http://www.joystiq.com/2006/10/16/first-ps3-ad-a-big-3-spaceship-is-coming-to-get-you/
http://www.joystiq.com/2006/10/16/first-ps3-ad-a-big-3-spaceship-is-coming-to-get-you/