This confirms what most people have been saying since before the release of the G5 - while the G5 is a floating point monster, for normal (read: integer) apps, the G4 is faster clock for clock than the G5. This is why waiting for a G5 powerbook is silly. Unless Apple releases a 2GHz+ G5 Powerbook, the current G4 powerbooks would be faster or just as fast as a slow 1.6GHz G5. The only advantage the G5 would have is in floating point heavy apps, such as 3d games and scientific analysis.