Very interesting. Thanx for the info! These results show why I chose a AL15" 1.25 instead of an iBook G4. I do a lot of video work and from your chart we can see that mp4 encoding on an iBook G4800 is just barely faster than an old G4 450... I know that the G4 450 probably has a much faster HD, but hey, that's why I BTO'd the 5400rpm drive.
Too bad the performance on my AL15" 1.25 gets a score of 0 because Apple has not made it yet...