telespree is making a very basic cellular phone that doesn't even have a keypad. Just an on/off button. When you turn it on it, you're connected to an automated voice-activated system. You say something like "dial 5 5 5 1 2 1 2" to dial a phone number.
I wonder how well it works if you're in a noisy environment? What if you don't want people around you to know the phone number of the friend you're dialing?
The system is designed to be essentially disposable so that they can be sold from vending machines, convenience stores, etc.