>The other problem is the lack of linux support for their SDK. Seems rather odd, considering Mono's roots.
Didn't Mono get a lot of hate and vitriol from the Linux crowd over their support for C# and .NET on Linux and then was pulled from Ubuntu's default install because of it? I can understand why they would be shy about support if all they got were brickbats and hate mail.
I thought that their removal from Ubuntu's default installation was simply that it's a large set of libraries that kept made it hard to keep the image under the size of a CD. And once Tomboy got ported to C++ (Gnote is almost exactly the same thing), it wasn't really necessary anymore.
Several Gnome applications have been rewritten in Vala and, having contributed a patch to Déjà Dup, I find it's a language easy to hack coming from a C/Java/C# background.
I always found interesting that Mono could have been a good thing for Gnome and because of the Microsoft influence in the language (or .NET platform, I'm no expert) it never happened.