I never get tired of watching buster hit the ground

Mythbuster was wrong with the release date of the Treo 750 FOUR times lol...

Your remote door lock key chain remote works by emitting a low-power radio signal to a receiver in your car. The signal is encrypted specifically to work with your vehicle and is very hard to duplicate. Cell phones use a higher-powered and higher-frequency radio signal (800 MHz and up, whereas your remote locks operate between 300 and 500 MHz). Cell phones transmit voice and data – they cannot "carry" other radio signals, which is what this letter is suggesting (unless the author was foolish enough - or thinks you are - to believe that your car lock remote works on audible signals that could be 'broadcast' through the phone's speaker).