After mentioning on Twitter that Apple doesn’t support momentum scrolling on their new Bluetooth Magic Mouse under Leopard:
a helpful listener sent me a reply with this handy Terminal command to enable it.
After entering the command above into the Termial and hitting enter, simply turn Bluetooth off and then back on to update the setting. After that scroll away with full momentum in Leopard.
To change things back issue the same command, but rplacing the last word ‘true’ with ‘false’ and turn off and back on Bluetooth again.