Summary: .NET is proprietary software for Windows, no matter what Microsoft-affiliated liars (and those bamboozled by them) try to say

THIS post will quickly address some lies before they go 'viral' in the media, most probably through Microsoft moles who pretend to be journalists (they know who they are).

Miguel de Icaza became almost an integral part of Microsoft when his company, Xamarin, accepted money from somewhat of a Microsoft proxy and then announced a deal/partner with Microsoft. Right now he is advertising Microsoft propaganda about .NET supposedly being 'cross-platform' (Mono used to serve a similar type of propaganda), spilling into all sorts of blog posts.

.NET is not Open Source and it is definitely not cross-platform. It is proprietary software for Windows, no matter how many self-serving lies we may hear from a Microsoft-linked Xamarin and turncoats like Miguel de Icaza. ⬆