"However, their position regarding the non-ECMA components like ASP.NET, ADO.NET, and Windows Forms (which are the bone of contention) remains unclarified."
But what isn't? Plenty of Rails is sitting atop JRuby and friends. Nothing is immune.
Don't get me wrong. I'm not a massive supporter of .NET (outside of XNA) by any means. My point is if legal issues are what you're looking for; you'll find them; everywhere. It's just all so ubiquitous it's simply not cause for concern.
Anything can be made to be seen as illegal from a certain perspective. Everyone is suing everyone else. Does that mean we all pack it up and go home?
Unless your Ruby app is leveraging JRuby's integration with Java... you can just take your Ruby app, fire it up on Rubinius or MRI, and you're no worse for wear.
