Above is a prototype MacBook PRO with support for 3G. The MacBook Pro has a SIM card slot and the little bar on the side is… you guessed it a 3G antenna. The MacBook Pro is fully functional with Snow Leopard. I don’t know if you stick a 3G sim card with activated cell service it will work but I am assuming you will need to set it up in the settings… So does this mean that MacBook’s with 3G is coming or is Apple waiting for 4G? The MacBook Pro goes for $7,200 now on Ebay so go check it out it has a lot more information about the device and a lot more images as well.