That is why I said CCD is the current winner at the moment. CMOS in itself without the patented technologies used is inherently more noisy. Until the others learn what Canon is doing with their CMOS or they find ways to do it themselves, they will continue to use CCD.
Of course, with new technologies today, CMOS is a whole lot quieter than many years back when it was a third rate camera solution.
I believe even for canon, in itself, the noise of their CMOS is still higher than that for CCD but by not much. Hence its lower manufacturing cost is a plus for Canon's margins.
They rely more on their latest generation Digic3 processor engine to remove the noise but yet able to maintain image sharpness.
so to sum it up ccd had better noise crtl than cmos? except for the price........