A guide for UNIX developers who want accurate information on getting up to speed with Mac OS X and its software development environment. * This book provides programmers all the information they need to understand and use the operating system, its development tools, and key technologies such as Darwin, Cocoa and AppleScript. * Users are introduced to the UNIX-based foundations of Mac OS X and shown how they fit into Mac OS X architecture. * Also provided is coverage of both GUI and command-line software development tools, realistic programming examples that developers will encounter, and a discussion of Macintosh-style software development.