Absolutely loving the sound of taxi finder mobile app, Uber. Apparently it shows you all the cabs nearby and connects you with the closest one. You pay via credit card and the taxi then heads your way, with you watching it approach via the app (if you're bored). You have the details of who you're travelling with and they have the details of who they're carrying. And after every trip you're asked to rate the driver/passenger, and a receipt is sent to your email address.
Via The Escape Pod