The 2012 mHealth Summit near Washington, D.C., highlighted the vast opportunities in mobile technology and health care. The hardware runs the gamut from ubiquitous Nokia (NOK 13.48%) basic handsets, to smartphones and tablets based on Apple (AAPL 1.08%) and Google (GOOG 0.82%) operating systems. Cisco's (CSCO 6.34%) networking equipment and Equinix's (EQIX 0.75%) data centers also play a key role. In the video below, Dr. Patricia Mechael explains how all these companies have a huge international presence and help save many lives.