Interesting read:http://news.cnet.com/8301-11386_3-57415777-76/how-dxo-labs-tests-hot-cameras-like-canons-latest-slr/?tag=mncol;topStories
Phone cameras necessarily have tiny image sensors that can't capture as much light as the bigger sensors on compact cameras or the even bigger sensors of full-frame SLR cameras. But for a given surface area of image sensor, mobile phone cameras actually do better.
I was just about to post the same link. It's interesting to see the actual patterns that they use for the test shots. Has anybody seen the grey splotches pattern before?