axlrosen alerts us to a Microsoft sleeper announcement from Mix07: a version of its Common Language Runtime will be available cross-platform. The Core CLR shows up as part of the Silverlight SDK that Redmond is open sourcing. From the blog posting: "The biggest Mix '07 announcement made on opening day of this week's show was one that Microsoft didn't call out in any of its own press releases: Microsoft is making a version of its Common Language Runtime available cross-platform. The CLR is the heart of Microsoft's .Net Framework programming model. So, by association, the .Net Framework isn't just for Windows any more."