That brings up an interesting point (and a reason to try the "Start Related Discussion feature)
Many Apple ads are brilliant for one main reason: they demonstrate how easy it is do to something: they show you what you need to do to accomplish your task: "This is how you install an application on an iPhone". "This is how you do XYZ." People can see for themselves how to do something and fosters the belief that they are empowered to make their own decision (even though they're being marketed to).
I cannot recall a Windows (or even PC) commercial which comes close to that. I remember "Dude, you're getting a Dell!". Some gateway spots.. Some pictures of people smiling over Windows Photo Gallery.. But nothing like, "This is how you burn pictures on your DVD". You know: the things that the Microsoft employees were doing to the people in the Mohave experiment.
Lesson observed: when people see what they can do on Vista and how easy it can be (or easy for most things..), positive perception of Vista was increased. Do you think Microsoft will learn the lessons?
EDIT: I thought that this feature would have copied the reference I had to another post. I was referring to Jamie's comment about two new Mac commercials, where it's shown people can take their PC to the store and have all their files transferred. Hey: it beats the $20.00 "copy" cable sold by some PC manufacturers.