Twitter cofounder Jack Dorsey has introduced the Square, a device that plugs into an iPhone or iPod Touch's headphone jack and allows the user to swipe credit cards. What do you think?
"Finally. I was getting tired of making my friends pay me in cash every time they wanted to use my phone."
Gerry Saunders • Labeler
"I had that idea years ago! I said, 'I should come up with a really great idea. Maybe something to do with a phone?' Damn it. I should have copyrighted that."
Kay Turner • Will-Call Clerk
"This is easily going to double my business in piggyback rides."
Nathan Vockeroth • Unemployed