I currently own a 1Ghz FP iMac G4. Thinking about getting one of the new Intel iMacs. I know that iLife will run native. I'm just wondering how is Apple getting the performance when these chips don't have Altivec? Is it just due to the fact that there are two cores doing the work? And a follow-up question...should I expect to see 4x the performance (on some tasks) when comparing my 1Ghz G4 to the 2.0 Ghz Core Duo? Thanks.