Several reasons I want to read this:

• I haven’t done much I/O in a while. (Yes, my programs live “in the clouds”.)
• I cannot recall the last time I did non-blocking I/O and I can only think of one time off the top of my head that I did not-blocking communications I/O.
• I know the APIs for doing non-blocking asynchronous file I/O have been around at the OS level for a decade or more, but I have never used them.
• I thumbed through the book in Borders tonight as I debated buying it. It had some really good examples in it.
• I have heard good things about JDK 1.6 and I am looking forward to it. Much more so than JDK 1.5, the only JDK I really waited until well after it was out to sample.