iPhone: Dealing with stress is hard, but if you're looking for a release in the moment, PAUSE is an iPhone app that might help you.
PAUSE is about simple meditation practices, where you slowly move your finger around the screen in a continuous motion while the app provides audio feedback. This supposedly triggers a relaxation state in your body, so you can focus on relaxing. There's really not much to it, but that's kind of the point. For me, it certainly triggered a sort of blurry-eyed state of relaxation, though it's hard to say how it will work in the long run. Still, even if for just a moment, it was a pretty pleasant experience overall.