Long time reader first time poster. I think DXOMark is a fine effort to objectively quantize image quality between cameras. What I miss is offsetting the results with the amount of light reaching the sensor at varying focal lengths determined by the maximum aperture. If data could be collected about this and combined with DXOMark result some truly interesting comparisons could be made. Personally I'd love to see high-end compacts compared this way such as Canon S90/S95, G10/G11, Pana LX5, Nikon P7000 and Oly XZ-1.
If anybody owns one of these cameras and wouldn't mind writing down max aperture as you go through the zoom I would be thankfull. In case this info is'nt displayed it could be extracted from EXIF data by taking a series of shots in aperture priority, taking a shot at every zoom step.