Softobe has released FolderSynchronizer 3.0B, the latest version of its robust yet easy-to-use folder and file synchronization and backup software. Version 3.0B is available for Mac OS X only and has been rewritten in Cocoa. FolderSynchronizer is provided as US$40 shareware; version 2.2.1, which is compatible with the Classic Mac OS, is available for $30.