Accelerometers in Smart Phones Might Be Useful for Spying

Georgia Tech researchers have paved the way for spy agencies and dark world hackers to obtain keystroke information from smart phones lying on user's desks next to their computers. As the user types the phone bounces on the desk just enough to be detected by the smart phone's accelerometers. This information is then used to deduce keystrokes. The system isn't perfect, but under certain conditions about 80% of keystrokes are deduced correctly. With repeated data collection, passwords can then be obtained.

Obviously, the phone must first be compromised, but any downloaded app could contain the key logging code.