The ShakeCall app captures a common problem for most Android devices and comes up with a brilliant solution that doesn't require buying a new gizmo. The app makes it possible to answer and disconnect calls on your phone with a simple little shake of the device.
The ShakeCall app is great because a common problem with Android devices is the slide screen not being responsive; this can sometimes result in missed calls. The app works by using a phone's proximity sensor, as well as its accelerometer, and makes it possible to answer the mobile device with a simple flick of your wrist. You can use the ShakeCall app to figure out how much force you've got to put into it.The ShakeCall app is a must for all Android users.
ShakeCall App Simplifies Answering Calls on Android Devices
Christopher DeLuca — May 25, 2011 — Tech
References: addictivetips & ca.lifehacker