[Locke1689]

Good article. A lot of the criticisms are ones that I often hit as well. I would probably dispute the asynchrony/performance one, though. C# async is very efficient -- a lot more efficient than many other eventing frameworks in many other languages. In addition, I don't really think that locks are specifically put ahead of lock-free things like InterlockedExchange when dealing with multithreaded code -- it's just that writing lock-free datastructures is so damn complicated (seriously, read the literature, it's really hard to get right), that for the everyday programmer a lock is the way to go. Moreover, there's not really a connection between async/eventing and locking; they're somewhat orthogonal. In large applications I would probably see a healthy dose of both. Async doesn't help with CPU-bound computation and threads aren't really the best way to deal with concurrent IO-bound computation.

Otherwise, I strongly agree with the points about Mono. Speaking personally, I would love if more of the .NET platform were extended for use on Linux, as I think the Windows CLR GC is still pretty far ahead of the Mono implementation.