Hasso-Plattner-Institut has developed 'Imaginary Phone', a technology that allows users to control their mobile devices without taking them out of their pocket
The Third Rail System includes a Slim Case for the iPhone 4 with a slide-on Smart Battery that allows you to add power when you need it and remove it when you don't.
Mopho DJ is a impressive new method of digital scratching which uses an iPhone placed on a physical turntable to gather accelerometer and gyroscope data.
Foxconn Electronics is reportedly facing a shortage of labor and materials at its Chengdu, China plant which could affect shipments of the iPhone 4 and iPad 2 in the second quarter
Lockitron lets you use your phone to unlock your home, business or rental from anywhere in the world and even share virtual keys with family, friends and guests.
These are instructions on how to replace the signal strength bars on your iPhone with a numerical representation of reception strength. (ie. numbers instead of bars)