Your Smartphone can be used as a key logger?

Researchers at GT have discovered with an 80% success rate that an iPhone 4 can be used to "feel" your keystrokes.
This new technology use is obviously not what the accelerometer and gyroscope were designed for, but offers even more of a requirement for why users should protect their smart phones and also not allow their phones inside secure facilities.
I was interested in the potential applications on some of the work that I currently do in the government as well.  Using these sensitive sensors in different unintended applications definitely holds interesting value since their use has driven their costs down.


http://gcn.com/articles/2011/10/18/smart-phone-sensors-steal-keystrokes.aspx?s=gcndaily_191011