David Freeman at Mark Of The Unicorn shares some Apple G3 compatibility notes with us (and you):

"Greetings from MOTU! Following is the compatibility status of Digital Performer and the new G3 Macintoshes: What *is not* compatible: You cannot run the MOTU Audio System for native audio recording and playback in new G3 Macs. MIDI is not affected. An update to MOTU Audio System will be available within a month which will address this. What *is* compatible: You can run Digital Performer and DAE for all Digidesign hardware on new G3's. MOTU recommends using DAE version 3.1.1 only. If you are running an older Mac with a G3 upgrade board, you can run all Digital Performer and MOTU Audio System functions including native audio."

Thanks for the update, David!