as seen on the silverlight.net forums (you should visit sometime)...
over at theconverted.ca there is a new SWF to XAML converter in the market...according to the site:
This program converts Flash animations to the Xaml format. It accepts files up to Flash version 8. It handles animation, sound and fonts. You drag files in, it generates the results. You can use the command line for automation.
check out some of the demonstration conversions -- pretty impressive!