The Verge-"This week, Nokia grandly unveiled its latest Windows Phone 8 flagship, the Lumia 920. It was an effort to reintroduce Nokia once again to the smartphone buying public and make the case that its technological prowess was second to none. The most important part of that argument is undoubtedly the Lumia 920's "PureView" camera. That case was utterly undermined by Nokia itself six hours after the unveiling, when we discovered that the promotional video that appeared to feature the new camera technology was faked. Nokia officially apologized for the deception and then was later forced to apologize again when still photos pulled from the same video were also revealed to be fakes."
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If it's trying to show how good it is in low-light situations, then it looks like it can do that quite well. But it's only just better than the Galaxy S3's camera.
I do suspect that the Iphone 5's new camera will best all of the above. Their sony sensors just always seem to have the perfect average of all situations. Good in all, rather then great in some situations and piss poor in others.