Some Silverlight 3 APIs are included though, including MultiScanImage 3.0 API enhancements and SaveFileDialog. Moonlight 2.0 does support the Silverlight 3.0 media pipeline allowing developers to use C# code at different points in the media playback process, de Icaza said.

"In particular, this means that you can use Silverlight and Moonlight with the Mono project's OGG, Vorbisand Dirac codecs to play back media files that use the open codecs or to plug your own media codecs," he said. Dirac backing remains a work in progress.