Book to learn about the new features in C#/.NET 4.0?

Question

I'm looking for an in-depth book that talks about, and only about, the new features in version 4.0 of .NET and C#.

There are some good books, that are/will be published and talk about C# 4.0, but cover all the features of the language and the platform, even the old ones, and I don't want to waste time in scanning through a book of these and pick only the new sections. Any titles?

Answer 1

I would get the early access edition of Jon Skeet's C# in Depth, 2nd Edition that covers a good chunk of this.

Edit: misread and missed the .NET 4.0 parts, this covers the language and some of the framework changes (dynamic and the associated parts, contracts, co- and contravariance). I don't know of a good summary for all the up coming changes including things like IObservable, possibly Jeffrey Richter's CLR via C#, 3rd edition when in becomes avaiable.

Answer 2

Just found this: Introducing .NET 4.0: with Visual Studio 2010.
Might be what I'm looking for.

The book is aimed at .NET 3.5 developers who will be trying to get to grips with .NET 4.0 and the associated supporting technologies, such as "Oslo," ASP.NET MVC, pLINQ, etc., which will be changing the way they need to think about creating applications from September 2009 onward.