Adam pointed to this SF project in his post. This is a remoting channel that allows you to access CORBA objects from your .NET Apps. I think this is cool and really ups the interop value of .NET. Now you can access those CORBA objects without learning anything new. The site says any IIOP object, I suppose it is not really restricted to CORBA alone.
This is still in intial stages and so you may not find it to be fully usable as yet...
