PhotonBoy
Flashlight Enthusiast
http://www.gizmodo.com/archives/text-message-your-tent-016039.php
"...a new 'Text Me Home Dome' tent has a built-in phone receiver and phone number, allowing you to send a special text message that will cause your tent to flash orange so you can pick out which one is yours...."
"...a new 'Text Me Home Dome' tent has a built-in phone receiver and phone number, allowing you to send a special text message that will cause your tent to flash orange so you can pick out which one is yours...."