I did a couple of posts about creating a Silverlight demo of the FeaturePics API.
The final sample is at : http://enermeter.com/fpDemo/apidemo.html.
Reports soon came in that the page would not run on either Safari nor FireFox on the MAC. So I put the same control on a page with less HTML and CSS, and I have been told that it works this way. Go figure. But hey, I am sure people who prepare pages for the MAC can work out how to embed this control on their page if they are so inclined. Here is the simplified version: http://enermeter.com/fpDemo/apidemo-MAC.html