I found it via SQLBlog.com, downloaded it and finished reading it.
To me (from the SQL Server 2005 DBA viewpoint), it was a well written overview of the SQL Server 2008 new features (and new features only). Because of our usage of SQL 2008 at work, I have greater appreciation and understanding of the new features as well.
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Introducing Microsoft SQL Server 2008
by Peter DeBetta, Greg Low, and Mark Whitehorn
Learn about major new features in SQL Server 2008 including security, administration, and performance.
Introducing Microsoft SQL Server 2008:
Chapter 1: Security and Administration
Chapter 2: Performance
Chapter 3: Type System
Chapter 4: Programmability
Chapter 5: Storage
Chapter 6: Enhancements for High Availability
Chapter 7: Business Intelligence Enhancements