You Synchronize 2.1 from You Software is the latest version of the file synchronization tool for Mac OS X. The update adds iDisk support and improved performance for remote and removable storage devices including FireWire drives. You Synchronize 2.1 offers Apple iDisk users file and folder synchronization with their online “hard drive” storage. To take advantage of this new capability, you’ll need a valid .Mac membership and will need the iDisk mounted on your desktop. Version 2.1 is a free update to registered users. For new users the cost is US$39.95; however, a $10 mail-in rebate is available through July 31.