okay, so Leopard users like myself don't need this "n" updater because like you said, it's already enabled with Leopard?
I ask because I damn sure wouldn't have any problems shelling out a mere $2 for something that would gain me better wireless router speeds, but if I don't need to spend the money then I surely won't.
I can put that $2 towards my next MBP update purchase. 😀