http://story.ch/cgi-bin/macnews.cgi/200 ... _powermacs
IBM is putting the finishing touches on the PowerPC 970GX according to
sources, and Apple is preparing for a launch of the processor in both
new PowerMacs and PowerBooks at WWDC 2005 in June. The chip's
scalability enables Apple to deliver PowerBooks in the 1.5-2.0 GHz range
and PowerMacs at up to 3.5 GHz, although Apple will probably clock the
highend machine a little lower than that. According to the same sources,
Apple will also put the 970GX used in the PowerBooks into a Rev. B iMac
G5, which should be finalized "this Summer", too. More details should
become available as WWDC nears.