Throughout the book you will notice that most of the examples that are given are the core examples that will most likely ship as quick starts for v2. I recognize about 90% of them from previous demonstrations from the ASP.NET team. I guess you could say that this is good; keep things consistent.
Dont Buy IF:
It's nice too see that this book does strictly focus on ASP.NET and does not cover any topics like ADO.NET, Web Services, or any new languages features like Generics, iterators, partial classes, etc.. It allows the authors to present in-depth and precise details on the limited scope for the book. If you're looking for more details on those or other topics not strictly specific to ASP.NET I wouldn’t recommend this book for you.
Personally I would never expect a book such as this to dive into many real world examples, its just too early (what, a full year before RTM?). So if you're expecting to see such things, don't get this book.
If you're one of those types that needs to stay on top of technology (personality –like me- or employment needs) then I do recommend getting this book. You might think it is a bit too early to actually make the investment, but I do believe that this book does cover about 95% of the content that will actually be released. You can expect some minor changes here and there, but for the most part I can see the value of this book lasting even past the final release of the product itself.
Some useful Urls to consider before purchasing this book: