Umm if you read more carefully you would have been able to grasp that USB hardware was added in to the iMac like I said in 1998. Redundant...

I'm not confused with ADB or USB at all. Apple dropped ADB in favor of USB. Many PC manufacturers had or still have PS/2 in their newest systems. Your statement that a service pack implies adoption means nothing. Few systems supported Bluetooth before Apple had it included standard. Windows OS still struggles with identifying Bluetooth devices.