I'm looking forward to this new book, which will hit the stores when Mono 1.0 is released.
I also like the idea behind The Developer's Handbook series, which is to introduce new technologies to experienced developers through lab like examples.
As much as I say I like the Nutshell books, I haven't opened my Java In a Nutshell for about two years, maybe longer. The Javadocs is simply easier to get at (Shift-F1 in IDEA).