await/async vs. “classic” asynchronous (callbacks)

Question

So the new async CTP is very cool; it makes my life a lot easier not having to write named callback methods and makes the intent of the methods a lot clearer.

Now that I

Answer 1

Like anonymous functions and iterators, the async and await keywords are syntactic sugar. In a technical sense, they are no more or less efficient than the equivalent non-sugary versions. They just save you a lot of typing.