The most compelling remains Pixel Qi -- a hybrid LCD technology that can be switched from a standard, full-color LCD backlit mode to a Kindle-like monochromatic reflective mode viewable in direct sunlight (while consuming 80% less power than standard LCDs).
Acupuncture: An ancient Chinese art based on the theory that Qi energy flows along meridians in the body, and can be stimulated by inserting fine needles at specific points.