I took the test last week after uses the Comptia Network+ Certification Kit which included the Network+ 4th edition 2005 Exam material. The problem was, the test is now called 2007 Exam.
I knew the material on the books I had studied, frontward and backward, (fully expecting to get an 800 or better) but they were asking questions on material I had not studied.
--Anyone get a read on this yet? The Comptia website still only has the 2005 objectives, but if you look at this you will see it says 2007 Edition
http://certification.comptia.org/network/glancebox.aspx. I don't feel like dropping $200, walking into a test center, and failing due to unexpected material...