A woman tries out a Tinke device by Zensorium on an iPhone during "CES Unveiled," a media preview event, at the 2012 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 8, 2012. The device allows users to make various medical measurements (heart rate, respiratory, oxygenation) and monitor them on their phones. The CES trade show will feature razor-thin laptops, powerful new smartphones and fancy flat-screen TVs, but talk in the cavernous halls of the CES may focus on whether the show itself has a long-term future. REUTERS/Steve Marcus (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY)