In 160 characters or fewer, a smartphone screen clipped to your left chest pocket, tells the world what you're thinking, desiring or doing.
No, not a hat. Hats already send all sorts of messages about status, employment, profession, social aspirations and your favourite fishing / golf / automotive products / team supplier.-- UnaBubba, Jan 21 2013 I know - 160 is deliberate.-- po, Jan 21 2013 Yes. It's the character limit for SMS. Twitter is 140 char.-- UnaBubba, Jan 21 2013 random, halfbakery