If you were referring to those posted at dc.watch.impress's site, I wonder why?
Most of the images they posted there had a strong Cyan cast under strong sunlight conditions while their indoor shot had a strong Yellow cast. The colours of their images were certainly not accurate or punchy at all. :dunno:
The output from my own DP2 tended to have a light bluish cast in strong sunlight while that of my DP1 had a very slight yellowish cast when used in strong sunlight in Hokkaido, Japan recently. No camera I ever used has a AWB that produces perfectly accurate colours anyway.