The second video points out that since 2005, all high-end Nokia models have used ZEISS lens. The video mentions how Nokia is the only smartphone manufacturer trusted by the lens maker. All of this is in preparation for the big event next week Almost from the moment that the Nokia 808 PureView was introduced, there has been talk about a Windows Phone powered version of the device and now it is almost here.
In the meantime, check out the pair of videos. You don't have to be a Nokia owner to find all of this interesting, especially now that the smartphone camera has gone from an afterthought to being a major feature on a smartphone.
source: YouTube (1), (2), Nokia