Apple updated the aluminum unibody MacBook Pro line today. New models include 13-inch, 15-inch, and 17-inch models with Apple’s built-in battery for up to seven hours of battery life. All of the MacBook Pro models have an LED-backlit display, glass Multi-Touch trackpad, an illuminated keyboard, an SD card or ExpressCard slot, a FireWire 800 port, and NVIDIA graphics.The new 13-inch and 15-inch MacBook Pro models use Adaptive Charging and the same advanced chemistry that was first introduced with the 17-inch