Nokia has recently presented two new phones in their Lumia series, and one wonders if they still have a chance to fight back against the rising tide of Android and iOS. The software is now finally competitive against the other two, covers the basics well, but nothing outstanding. So they need something else to get people to switch, and I believe they have it in their PureView camera technology. Assuming Apple does not catch up next week, it is miles better than the competition for indoors photos. Since photos/videos are now one of the main uses for your phone, and low light performance is currently clearly not good enough, it is probably the best chance they have for wooing people into their camp.
Update: It did not help that they did not use their camera to demonstrate image stabilization in their spots, since it sows doubts on the validity of the quite amazing actual photos they posted. And while they never claimed to use smartphone footage to demonstrate IS, it was clearly implied. Shame on them.