Phoronix: As It Stands, Ubuntu Has No Issues With Mono
On behalf of Canonical and the Ubuntu Technical Board, Scott James Remnant has issued a position statement surrounding Mono, the open-source project that provides a C# compiler for Linux (along with other operating systems) and other components for a free software .NET stack. However, the legality of Mono is frequently a key concern to free software advocates considering patents and other intellectual property that's owned by Microsoft...
I thought most of the .net stack was opened after standardization. Also, I don't think the software patents microsoft holds on .net will stand up in court, at least in most of europe. Might be wrong there though, but I thought europe at least is far more strict when it come to software patents
As far as I know, Mono is not used for any common KDE programs. Most of them seem to be written in either C++ or a scripting language like Python. I think it should stay that way. I can see the day (quite easily) when Micro$h!t destroys GNOME because of all the Mono they plan to include. KDE is being smart, as always, and not including it.