It was just five months ago that Apple speed bumped the iMac G5 by 200 MHz, and yesterday it upped the ante again. The Late 2005 iMac G5 is thinner, lighter, faster, and more feature-laden than its predecessor.
Last Tuesday, Apple speed bumped the Power Mac G5. Last Friday, they officially released Mac OS X 10.4 Tiger. And today, Apple introduced improved versions of the eMac and iMac G5. Both new models ship with Tiger.