Have you used Moonlight?

You might notice it doesn't fucking work then.

More specifically, it is:

* not stable

* not up to date with Silverlight

* does not include video or audio support. Videos just ask you to download Silverlight.

* not packaged

* not presented by Microsoft to users who need a plugin when they access Silverlight content. When you visit a Silverlight page, a 'Download Silverlight' button takes you to Microsoft. The Microsoft page gives another 'Download Silverlight' button that tells users their 'platform may not be supported'. Clicking them gives no download and returns back to the same Microsoft page ad infinitum.

Try it yourself - http://www.go-mono.com/moonlight/.

Yes, you'll get some ancient shitty bouncing balls Silverlight 1.0 test app.

No, you won't get any actual content.

Moonlight's a furphy.

Well, that might be. But in this context I wasn't even talking about running full Silverlight apps, just having a decent browser-independent, cross-platform Python runtime.