The famous campaign launched by Apple and entitled: "I'm a PC. I'm a Mac" is a huge success and the concept has widely been used for ads promoting other consumer electronic devices (such as the Wii).
Parallels launch its advertising campaign entitled "PCs & Macs Coexist" which is also inspired by Apple's ads.
Hereafter is one of them:
Many other video are available from their blog:
http://parallelsvirtualization.blogspot.com/2007/07/coexist-with-parallels.html
[translation by Li