Google Voice was tested and displayed on the Today Show. It highlighted the convenience of the service as well as the possible intrusion on your personal information. Google has found a way to control almost all information in the world, and phone conversations are the next step. They do it in a miraculous way, and the Google Voice service is no exception. You have one number and multiple controls on your incoming calls. When you sign up, you have a vast choice of your number, including area code and what your number you actually spell out.
We will see how this shapes telecommunications moving forward. I have a feeling Google is going to make a big impact in this arena.