Yes its advertising for Microsoft -but its for a good cause.

“Microsoft Australia are running an interesting campaign to demo MS Office 2007 and raise money for charity at the same time. The premise is fairly simple. Users head over to the campaign page (built with Silverlight) and watch a 30-second clip of 9-yr olds explaining MS Office 2007, and Microsoft donates one Aussie dollar to The Smith Family.”

http://www.microsoft.com.au/donatenow is the link