Xeric Design today announced the release of EarthDesk 4.0, its award-winning, real-time dynamic desktop map, for Mac OS X. The company says version 4.0 has been rebuilt from the ground-up as a modern Cocoa product. They have also moved the application from the dock to the System Preferences Panel and have added an optional menu item for easy access to the most common settings. EarthDesk requires Mac OS X 10.4 or later, and is priced at US$19.95. Upgrades are available for $9.95 or $12.95 depending on the status of your pre-existing license.