Yes, you read that correctly. We have a viral promotion site that will ship you a free copy of Windows Vista Business and Microsoft Office Professional 2007 if you complete the requirements listed.
As always, this promotion is limited by the number of copies available and there is a deadline. Looks like a pretty simple requirement. Watch three webcasts for Windows Vista and watch three webcasts for Office 2007.
I haven't watched the webcasts yet so I don't know how much time is involved, but I doubt the time requirement is very high. I'm sure it's less than the required training I just completed today.
[UPDATE] Links pulled until I've confirmed this is legit or not.
[UPDATE to the update] I verified the website is indeed a Microsoft property created by one of our marketing agencies.