Twitter looks like they are not a one hit wonder. Check out the new startup from co-founder Jack Dorsey called Square, a mobile payments company. “Square allows anybody with a cell phone or laptop that has a headphone jack to accept credit card payments using a small plug-in dongle, rather than having to purchase costly credit-card processing equipment“. It’s in beta(private beta, that is) and basically means you’re a walking store selling shit on the go. Nice Job!
Think about it, someone wants to buy one of your works… you can complete the transaction on the spot.