I got introduced to Hailo , a taxi app, by a Cabbie the other day. There are many taxi apps on the market all with standard functionality and on the surface Hailo’s no different.  It allows users to “hail” cabs within 3 min and two taps of the app. So far so good. But Hailo only uses accredited London black cabs, is Transport for London approved and allows you to track the movement of your cab in real time.  Perhaps the best part is that your credit card gets charged automatically according to whatever’s on the meter with Hailo taking a 10% cut from the driver.  With over 20,000 cabbies in the London area alone that amounts to serious revenue potential. This robust business model explains how the development story has progressed; 3 Cabbies got together, partnered with Google and brought it to market after a round of VC funding. They’re now about to introduce it to the US and have secured $17M more in funding .  Drivers get access to more customers ...