Keyglove is an Arduino and AVR-powered device that also incorporates an accelerometer to control mouse movements.

ENGADGET: Keyglove ditches QWERTY for one-handed computer control (video)

The input values might be derived from real-world measurements, such as keystrokes, mouse movements, or the contents of your hard drive.

FORBES: Software Is Just Math. Really.

David Dagon, a professor of cybersecurity at Georgia Tech who's familiar with Pramana, hints that the technology may involve tracking mouse movements for signs of human timing.

FORBES: Magazine Article

They found that certain movements of the mouse are common, allowing them to predict how someone uses the web.

BBC: Reading your mouse movements

With the new Air Mouse app, the user's natural hand movements can drive more powerful presentation delivery, more interactive classroom lectures, and more immersive motion gaming.

ENGADGET: Movea turns your iPod touch or iPhone into an Air Mouse for just $2