<<Steve Ballmer signs a student's Macbook during his visit to Trevecca Nazarene University. (Nashville, TN – 01/20/2010) Closeups of the signiture can be found at uselessuniverse.com >>

http://www.youtube.com/watch?v=GwzklHZqkbE

http://www.techflash.com/seattle/2010/01/video_ballmer_scrawls_on_a_mac.html