The Worlds Smallest Mobile Phone...
The Zanco T1 is a miniature device which is smaller than a thumb and lighter than a coin.
With 32MB of memory, you can store up to 300 contacts in your phonebook, 50 SMS messages, and the last 50 incoming/ outgoing numbers.
It runs on a 0.49" OLED screen on a 200mAh battery. and comes with a 2G connectivity, Bluetooth and MicroUSB.