From the article:
Surprisingly, the 808 trumps the LX5 in terms of noise performance in low-light conditions. Looking at a 100 percent crop shot at ISO 1,600, the 808 (in 5,8,38 megapixels) retained much more image detail than the LX5 which appeared fuzzy with smeared details.
Based on the 808's image samples shot in different resolutions, we discovered that one could get the best quality when shooting at the base resolution (5 megapixels). In fact, shooting at full resolution (38 megapixels) yielded noisier results and softening of detail, especially at high ISOs.
Even when we resized the 38-megapixel image down to be the same dimensions as the 5-megapixel sample, the latter still appeared cleaner and sharper.
Verdict: The 808 is clearly superior to the LX5 in terms of low-light performance, retaining much image detail and better noise performance (at 5 megapixels).
...Overall, we think that the Nokia PureView is capable of replacing your regular compact camera, where image quality is concerned. The smartphone impressed us with its excellent low-light performance and image detail which we attribute it to its large 41-megapixel image sensor.
Not altogether surprising - the oversampling system's biggest plus point in my eyes isn't the possible 'zoom' but the way digital noise under challenging (indoors, evenings) conditions can be almost completely eliminated. I suspect that you'd have to go to a full DSLR around the £300 mark before photos started to come in as significantly better than what the 808 PureView is capable of.