Shirt Pocket today announced the availability of SuperDuper! 2.1.3, the latest release of the company’s fully bootable backup utility. Version 2.1.3 improves many aspects of the award winning application, and adds the ability to control ACL copying for the more advanced user. SuperDuper! 2.1.3 supports both Intel and Power PC Macs running Mac OS X 10.3.9 or later, and is priced at US$27.95.