It's amazing that I didn't spot this earlier on. This series of viral videos was launched last year in December 2006! Maybe I'm not that connected in this organization :P I apologize if you've already seen this.
Here's the link to the full series of videos on YouTube: http://www.youtube.com/profile?user=workwherever
And checkout the campaign landing page at : http://www.microsoft.com/windowsmobile/workwherever/default.mspx