Irrlicht.Net is a new .NET wrapper based on Irrlicht 1.7.2. When I stopped developing the original Irrlicht.NET a few years ago a lot of people were sad because of that, so this new wrapper started by Martin Risell-Lilja will probably make a few people happy again. :)
Companies have started using .NET to create their tools with (see TorchLight, for example. They use C++ with Ogre for their game and MOGRE C# for their tools / game editor).
At the moment, Mogre is only good free 3D engine for .NET, so there would have been quite a big audience for a .NET version of Irrlicht.
Don't know... In internet slang I saw your decision as "epic fail".
I'm glad someone picked up the idea of having a .NET version of Irrlicht again, though. Will be watching that project closely. :-)