This session from Mary Smiley, from Intel's Emerging Technology group, was presenting on new micro technologies that enable all of us to "live large".
Some of the technology she covered were sensors, like the one in the iPhone or iPod Touch that can tell when you tip or shake the device. Some more advanced sensors that seem to be in the pipeline would be able to judge your mood from your body temperature, recognize your voice to determine more quickly if your phone might be stolen, and just check how healthy you are.
Some of their research leverage the Polar heart rate monitor straps and the mobile devices that measure activity to get an overall picture of their health. Clearly their are privacy implications for this, where you would not necessarily want to share all of this information with just anyone, and apparently those are being addressed.