A Wow echo?

Why did Micro$oft decide to use the "Wow!" slogan for the new windows Vista operating system?
Maybe it was because Bill remembered hearing it said in another Windows Operating System presentation, Windows 98.
Do you remeber that presentation???
Here is the link :

Windows Vista - Cancel or Allow

I recently saw an Apple advertisement about the new security feature in Windows Vista. The User Account Control or UAC.
Basically the system is asking the user all the time if he "allows" or "cancels" the current software instalation/Settings changes or whatever. Obviously after a day the user starts to accept everything... making the User Account Control useless.

Here the video in youtube.com

Windows Vista — ¿Cancel or Allow? — CANCEL