Open source projects in .NET are flourishing. Can mainstream open source developers continue to ignore the platform that exerts such a large influence on IT development globally? Come prepared to challenge your assumptions about OSS development in .NET, and to learn about the state of OSS in .NET and how the Mono Project fits into this picture. Mono is an open development initiative sponsored by Novell to develop an open source, UNIX version of the Microsoft .NET development platform. Its objective is to enable UNIX developers to build and deploy cross-platform .NET applications on Linux, BSD, UNIX, Mac OS X, Solaris, iPhone and Windows.This presentation will provide an introduction to OSS in .NET, with a particular focus on how Mono 2.4 brings the benefits of the .NET framework to platforms beyond Windows.