 The iMac G5 was updated in March 2005 to the Ambient Light Sensor (ALS) revision.It included a handful of configuration differences – more RAM, a larger hard drive, improved graphics, Gigabit Ethernet, and standard AirPort Extreme (802.11g) and Bluetooth 2.0+EDR.In October 2005, the final revision was released, adding an integrated iSight webcam mounted above the LCD and Apple's Front Row media interface.