Currently, you can find oximeters at WalMart for about $40. One of the fastest growing product categories in the action sports market is fit tech. It's been bubbling up at CES and OutDoorRetailer for years.
With bluetooth capabilty, it would be good if this device can be used with Nike+ or Fitbit.
Being open-source take a lot of pressure off of product developers, the public take over as the developer. Although that tends to be a slow moving machine, plenty has come from it. Just take Linux as the premium example.
I am not a big fan of Bluetooth. I found it to be rather susceptible to electrical noise. I suppose this isn't a life critical application, so it doesn't matter much.
Unlike industrial robots, which suffered a slight overall slump in 2012, service robots continue to be increasingly in demand. The majority are used for defense, such as unmanned aerial vehicles (UAVs); and agriculture, such as milking robots.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.