Very interesting idea, given the uselessness of megapixels and the difficulty of understanding the various factors that make a technically "good" camera, i'm curious to see how well this rating system works.
It's designed for cameraphones and compact cameras, so i would imagine that anything above a pro compact will score a 5/5.
"The test combines a host of technical measurements--detail, sharpness, chromatic aberration, lens distortion, and more--then links that analysis with subjective human assessments to ensure the measurements really are relevant. A detailed formula boils the various factors down into a single rating.
Read more: http://news.cnet.com/8301-30685_3-20046234-264.html