It was a giveaway book at TechEd 2005 if you did a test of some kind and GregorS had two of them as was friendly enough to give me one. It's a really nice looking book that will server as a book shelf decoration for most of its life. The content will not last very long since it's Beta 2 based.
Basically this book is a really long "What's New" for upcoming VB.NET, Microsoft Framework 2.0 and Visual Studio 2005.
I don't code in VB.NET, after VB6 a switched to C# but I found a book quite useful. I major part it touches the stuff that is common to C# and VB.NET or is actually about Visual Studio environment. So most of the content will interest a C# developer and it's always nice to know what's in the "other" language anyway.
Since the book was free, it's well worth its money!
Even if you don't have a way to get a hold of paper version of it you are in luck. Microsoft gives it away for free in digital form. Nice move!