Making something open source != making something GPL. .Net is licensed under MIT/X11 I think.
If someone is licensing something under GNU GPL, they are also giving away their intellectual property/patent rights (or what ever they call that) to any software developed in GPL, which Microsoft is never ever going to do.
MIT/X11 license is not giving other developers and users such a patent protection from its original developers.
If someone is licensing something under GNU GPL, they are also giving away their intellectual property/patent rights (or what ever they call that) to any software developed in GPL, which Microsoft is never ever going to do.
MIT/X11 license is not giving other developers and users such a patent protection from its original developers.