Reader Dennis Liu created the Again and Again Mac OS X Leopard tour video last year. The Microsoft Mac Business Unit liked it so much that they hired him to do one using Microsoft Office:
In a twist of fate, although I was talking to higher ups at Apple for some time, Microsoft actually contacted me and wanted to collaborate on a video together. Who would've thought. It was with the Microsoft Mac Business Unit. They really liked the music video and wanted me to do something for Microsoft Office for Mac.