Well to my own surprise, when accessing a Silverlight app on the net on my little Ubuntu laptop, here is what I got:
Moonlight [3] is an open source implementation of Microsoft Silverlight [4] for Unix systems.
I knew about Wine, Mono, Crossover, Grasshopper and many other MS based technologies "enablers", but this one I had never heard off. And guess what, it worked!
Check it out for yourself at: http://go-mono.com/moonlight/ [6]
Links:
[1] http://pulse.veltsos.com/category/it/software/development
[2] http://pulse.veltsos.com/category/it/software/software/os/linux
[3] http://www.mono-project.com/Moonlight
[4] http://silverlight.net
[5] http://linux.philosweb.com/drupal5/files/image_2_34.png
[6] http://go-mono.com/moonlight/