Millions upon millions of people across the world have mobile phones. The cell phone industry is HUGE right now. There is a lot of competition on who has the best cell phone, plan, coverage, etc. on the market. The iPhone pretty much takes the cake (in my opinion, anyway).
However, this is pretty amazing. While it is completely theoretical at the moment, a man named Jim Mielke is working on a cell phone that would be implanted in your arm. Mielke entered his idea in the Greener Gadgets Design Competition 2008. The product is called the Digital Tattoo Interface. When the phone rings, a two-by-four inch tattoo of a phone display and keypad appears on your skin.
Tattoos with a function?! That's pretty awesome. Who wants to bet that if this device comes to fruition, Apple will patent it and sell it for $7,000 dollars?