Main service and feature differences from previous models:
Intel Core Duo microprocessor architecture: 1.83GHz, 2.0GHz, and a 2.16GHz option
Higher resolution 15.4-inch display, 1440 x 960, 114 dpi (previously 1280 x 854, 101 dpi)
Supports DDR2 memory up to 2GB
128MB VRAM with dual link DVI option is now standard
9.5mm slot load SuperDrive (versus the previous 12.7mm)
80GB 5400 RPM hard drive standard
100GB/120GB 5400 RPM, 100GB 7200 RPM hard drive option
No modem
No FireWire 800 port
No PC Card slot
ExpressCard/34 expansion card slot
Dual display latch
AirPort and Bluetooth cards and antennas are separate and in different locations
The AirPort Extreme antenna assembly is in the clutch cover
Infrared sensor
iSight camera built in
MagSafe magnetic power connector