"The phone uses a technique that Nokia calls over-sampling, to produce crystal clear, noiseless images with an effective resolution of 5 megapixels." At first this sentence made me think it might be just a marketing trick, but seeing the sensor size I see there might be something truly innovative here.

I first thought the sensor size must be a mistake, 1/1.2" huge, it is larger than any point&shoot camera (biggest ones are 1/1.5" like Canon G1-X) and its area is ~60% of normal DSLR sensor area. But still the 41MP sounds huge, it remains to be seen how much that MP count affects the actual image resolution. Maybe Nokia should just start making P&S cameras if it's really that good.