From a Micromat tech posting on OSXFaq;
Drive 10 will almost certainly require a revision for Mac OS X 10.2. The beta testers will have to have time to buy the new system software from a dealer, then test the new version of Drive 10 with it.
Most of you are familiar with the Mac OS ROM file in Mac OS 9, and how it must be updated to support the hardware of new models. With Mac OS X, the bootx file and some frameworks need to be modified to support new hardware.