In another “not quite Windows Live but still cool” post, Moonlight, an open source implementation of Microsoft Silverlight for Unix systems, is now available in both Silverlight v1.o and 2.0 builds. Silverlight, while it still has a long way to go to become as widely adapted as Adobe’s Flash, is leading the charge for Microsoft to become a more open eco-system for development.

There have been quite a few Moblin related announcements these last weeks: The release of the final version of Moblin 2.0, the Moblin Garage and the preview release of Moblin 2.1. More interesting is the news released by Microsoft's Silverlight team that they will develop Silverlight 3 for Moblin.

I had previously pointed out that the lack of supported platforms was a serious problem for Silverlight, especially when compared to Flash. The root of the problem was that Moonlight, the Linux version of Silverlight, is usually at least one release behind the Windows and mac versions of Silverlight. This caused confusion for developers as it was not clear which features would work on Linux.

Intel and Microsoft have announced a new port of Silverlight to Linux, specifically for the Intel-sponsored Moblin operating system running on Atom-powered devices such as netbooks. The port enables Intel to include Silverlight as a supported runtime in the Atom Developer Program, which will feed an iPhone-like App Store.

The media wrongly presents Silverlight as "cross-platform" and falls for Microsoft's open source marketing ploy

When I first looked at Moonlight, Novell’s open-source version of Microsoft’s Sliverlight, I liked it, but I didn’t really see much of a point to it. Silverlight, Microsoft’s latest answer to Adobe Flash, isn’t used in many sites. What I liked the most about Silverlight was that it provided a fully legal way to access WMV and WMA (Windows Media Video and Audio) from Linux.

The open-source Mono project will show off an early version of Microsoft's Silverlight browser plug-in running on Linux later this week. Work on the plug-in, called Moonlight, was started only in May, after Microsoft's Mix conference. Moonlight uses version 1.1 of Silverlight, a browser plug-in for displaying interactive Web applications, which is due in the fall.

The beta version of Moonlight 1.0 is now available to download as a Firefox plug-in. The application, is the Linux version of Microsoft's rival to Flash, Silverlight. It makes it possible to play files such as WMV files under Linux. Novell has been granted access to Microsoft specifications and to multimedia codecs and test tools for the project.

One of the difficulties open source software faces is in implementing support — where it is even possible to do so — for the wide variety of codecs, formats, and other proprietary technologies that users have come to rely on. One such technology is Microsoft's Silverlight framework, which until early this year, was a no-go for Linux users.