Official Nokia Conversations blog published a two part article on N8 camera (part 1, part 2). Some interesting quotes:
"The first thing we did was throttle back the edge enhancement to a point where it’s almost disabled. In video – under good lighting – we completely disabled noise reduction. I think it’s pretty unheard of for such devices to not be running any noise reduction. But it’s testimony to the great optics and superior sensor."
"Apart from disabling various artificial enhancers, we also carefully consider how we reproduce colour in certain environments. Here’s two examples. In candle-lit scenes, you remember the warmth of the candle light. In snow scenes (my Finnish colleagues know this far better than I do), people tend to remember the bluish tint to the snow caused by the blue sky. In these situations, rather than correcting to a theoretical perfect white balance, we tune it to how you remember it. To achieve this takes time and many rounds of tuning, testing, retuning, testing, etc."
The official untouched sample pictures demonstrating N8 approach are also shown in the blog.