I'm very happy to be able to offer this Flex Whiteboard Component for sale as of today.
It is a complete rewrite of our popular Flash Whiteboard component which has been integrated into projects such as DimDim and Aspiringkidz. We hope that the Flex component will have a similar success. I truly believe that this is the best Flex based whiteboard component for FMS available today and it has a massive feature set including many public APIs and an architecture that allows you to specify any Canvas component in Flex as the whiteboard surface. Images are supported and we have even added Flickr integration.

I've set up a dedicated page with more information right here.