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

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"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