Video in tablet magazines and similar apps sometimes -- okay, often -- comes across as a grafted-on extra. Condition One, a startup by war photographer Danfung Dennis, wants to make video an intrinsic part of the experience by taking advantage of the motion sensors in smartphones and tablets. Video shot from a DSLR or similar camera is converted into a 180-degree format that you can swipe or tilt through on an iOS device to get a more involving look. It's a lot more lively than plain movies, and Dennis sees the technique