I don't want to be come across as knee-jerky anti-Microsoft (I haven't used .NET; I admit ignorance there), I'm just surprised that it didn't acknowledge the one example of an actor system that programmers are likely to have heard about. It seems like it would be useful for comparison.
Besides, Microsoft employs Simon Peyton-Jones, among others, and they fund serious programming language research in various ways. I'm not implying it's dishonest on their part, I just found it a bit odd.
Sure, having used (and appreciated) Erlang I agree it would be interesting (I'm not a .NET user either or likely to become one.) I'm not surprised they omitted it, though I won't speculate why.
I just think it's worth reinforcing that there are interesting actor systems other than Erlang, and that some of the people at MSR deserve some credit in the area.
