Me and Mark Publishing today announced a new version of Mark Szymczyk’s book “Xcode Tools Sensei.” The new version of the book features updated material to reflect the changes in Xcode 2.4 and Shark 4.4, including material on creating four-way universal binaries that contain 32-bit and 64-bit versions for Intel and PowerPC Macs. Xcode Tools Sensei is a guide to the developer tools that ship with Mac OS X, covering over 25 graphical and command-line tools. It is available in both print and electronic versions, US$35 and $20, respectively.