BookMan 2.8.4 minimum OS requirements...

The newest version of Bookman, 2.8.4, has a minimum OS X requirement of 10.5! Please contact our office with any questions or concerns. 877-BookMan

BookMan 2.8.1 will still be available and updated for companies still working on upgrading older computers.

10.7 Lion drops support for PowerPC applications

http://www.9to5mac.com/53977/10-7-lion-drops-support-for-powerpc-applications/

OS X 10.7 is due out this summer!