http://blogs.msdn.com/gduthie/archive/2008/05/14/first-moonlight-release.aspxFrom Miguel de Icaza : Today we are making the first public release of Moonlight, supporting the Silverlight 1.0 profile for Linux. The release comes in two forms: No-media codecs supported, but easy to install: head to http://www.go-mono.com/moonlighten-USCommunityServer 2.1 SP1 (Build: 61025.2)