Objective-C and Cocoa, not new but my new favourite development environment. I love the documentation, in my opinion the best documentation of any language. I

Objective-C and Cocoa, not new but my new favourite development environment. I love the documentation, in my opinion the best documentation of any language. I love the way Apple doesn't care what anyone else thinks about their language and has ridiculously verbose 40 character long method names to make code clearer. Love it!