24 different models is different from the 20 different products mentioned above. I don't consider a White 16GB WiFi iPad 4 to be an entirely different product

24 different models is different from the 20 different products mentioned above. I don't consider a White 16GB WiFi iPad 4 to be an entirely different product from a Black 16GB Wifi iPad 4. The 4-product lineup Marco is talking about was the old Apple Matrix of Consumer/Pro and Desktop/Mobile comprising the iBook, PowerBook, iMac, and PowerMac.