Logic Audio will support the Velocity Engine of the recently introduced Power Mac G4 models in a future subrelease. This means that not only will the performance of individual plug-ins increase by several hundred percent, but there will also be a noticeable improvement in the overall performance of the program itself.
Please keep in mind that an "iMate" (USB/ADB adapter) from Griffin Technology is currently required in order to run Logic Audio Gold or Platinum on Power Mac models without an ADB port. The iMate also allows you to use ADB keyboards, mice or trackballs simultaneously.