Mono Project is an Open Source implementation of the various ECMA and .NET framework technologies for Unix, Mac OS X, and Windows. The project includes a compiler, a class library, and a CLI runtime engine.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Support for the ASP.NET AJAX APIs and controls has been added, ASP.NET can now be deployed on a multitude of servers that implement the FastCGI protocol, in addition to Apache. Windows.Forms now supports the WebControl on Windows and Linux using Mozilla. This version can now be used as an SDK for creating Silverlight 1.1 applications on all platforms.