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.Net goes open source

This is quite a surprise. I just read Miguel de Icaza's Blog  about Microsoft is open sourcing .NET.

Part of Miguel de Icaza article

Today, Scott Guthrie announced that Microsoft is open sourcing .NET. This is a momentous occasion, and one that I have advocated for many years.
.NET is being open sourced under the MIT license. Not only is the code being released under this very permissive license, but Microsoft is providing a patent promise to ensure that .NET will get the adoption it deserves.
The code is being hosted at the .NET Foundation's github repository.
This patent promise addresses the historical concerns that the open source, Unix and free software communities have raised over the years.
http://tirania.org/blog/archive/2014/Nov-12.html

What do you think about this?

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Nmap scan report for 192.168.0.3
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See explantion below

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