Pedro, thanks for posting these good news. Because we can expect the exam topics soon, it is very probable that there will be an update of the book by Charles Lyons (I asked him about whether he will rewrite the book for the new exam and he replied that he wants, but only after the objectives will be specified in more detail).
Yes, I bought the Enthuware for JEE 5, but haven't taken any test yet - now I read the Servlet 3.0 specifications and I'm very enthusiastic about it. I experiment in Eclipse Helios, which has fine support for Tomcat 7.0 (although I rather use NetBeans for my own programming and IDEA at work) and it is very quick and pleasant to create new servlets or filters with proper annotations, so one is not bored by deploying the whole web-app using only Notepad and Total Commander.
I also started to create my own quiz focused only on the new Servlet 3.0 features, for my own learning purposes. I want to create about 30 or so questions aimed directly on web fragments, asynchronous processing and annotations (now I have about 20 questions complete). I wonder if I should make it available for public - maybe it would help somebody, or maybe that the quiz would not be good at all