At one point in time there was a hilarious WPF demo application at:

http://www.microsoft.com/japan/windows/using/windowsvista/webshowcase/demo1.mspx

But the link goes to
http://wwwbeta.microsoft.com/japan/xbap/dominoken.xbap

And sadly MS have pulled it from the site. Such a shame. I wondered if anyone had archived copies of it, but searching for it on Google (in Japanese or English) doesn't pull anything up.