Rocket Internet-backed Square clone Payleven has cut a deal with Berlin’s taxi association – Taxiverband Berlin (TVB) – to trial its payment dongle. Payleven offers dongles for mobile payments with magnetic swipe, as  well as chip and PIN payment dongles. The taxi association has opted not to use the magnetic swipe option. The system is currently in use in about 100 Berlin taxis. [Source: TechCrunch]