Rockstar
The tXtBlocker cellphone app uses GPS to decipher when and where the user is allowed to text, call, email, or browse the Internet. tXtBlocker is marketed mainly towards control-freak parents or employers, as you can set up “safe zones” to limit the use of certain functions in schools or in offices.

You can even receive texts if the phone user is speeding and locate the phone’s location if it’s lost, or if you want to find out if your adolescent is really at the library after all. All Big Brother jokes aside, the tXtBlocker cellphone app could make a serious dent in distracted driving.