CodePlex is an online software development environment for open and shared source developers to create, host and manage projects throughout the project lifecycle. It has been written from the ground up in C# using .NET 2.0 technology with Team Foundation Server on the back end. The solution is open to the public free of charge. CodePlex is also the Microsoft’s open source community which will host projects by parties that would be made available under a variety of licenses, including Microsoft Shared Source and the GPL, among others.
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Microsoft’s plan is to take the CodePlex site “more formally live” in late June or early July, said Bill Hilf, director of Microsoft’s platform strategy. Sources said Microsoft’s current plan is to launch the final version of the site at the Open Source Business Conference in London in late June.

Among the projects currently hosted on the CodePlex beta site An “Atlas” control toolkit, which is a set of plug-in components for Microsoft’s Atlas AJAX framework, which is currently in beta; “Turtle,” a command-line interface for Microsoft’s recently introduced Team Foundation Server; and IronPython, the .Net implementation of the Python programming language. Of course hosting is free as well as the registration, wan’t to try some open source ala Microsoft ?