They really are doing some cool stuff, the author mentions a few things. I'd also mention the stuff they are doing in software. ASP.NET MVC, F#, hell even good old C# is just getting better and better. There is plenty of room for Google, Apple and Microsoft to all create cool stuff.
I'm not going to defend them any more unless they start cutting checks but you have to admit that even if you don't think it is any good at least they are trying. You work in a windows shop you use whatever Microsoft gives you, we could still be stuck with Web Forms.
Well it is certainly smaller. I'd really like to use it at least for APIs where I am currently using the WCF rest and JSON stuff but it would be an uphill battle to get it deployed to production. Right now I use RabbitMQ and Redis internally and I fight the same battle over and over. They can't believe I wouldn't just use SQL Service Broker. I wish there was a way for Microsoft to "bless" projects like Nancy.
Its almost a syndrome, where many (not all) Microsoft shops can't envision using something in addition to what MS offers, even if the effect is positive for the developers, users, budget, timeline, etc.