Nokia's Lumia 920 packs the industry's best image stabilization -- there's no questioning that -- thanks to a camera module that pairs both sensor and lens-based optical IS. The iPhone 5 also offers a notable improvement over its Apple-made predecessor on the video front, but considering that its stabilization is of the digital variety, we wouldn't expect it to top Nokia's new flagship. We had an opportunity to test both smartphones in a head-to-head demo at Noki