Orange is reported to be planning an investment in fledgling connectivity marketplace BandwidthX, signalling that its services may be on their way to Europe. BandwidthX has pioneered a marketplace system for WiFi, which matches hotspot owners to those needing capacity and calculates a market fee. The company came to life on the prospect of WiFi offload, and said – when we first met its executives in 2013 – that it was talking to all the US tier one operators. No wonder – such a marketplace could radically change the economics of using WiFi either for mobile data offload, or as a primary wireless connection in a WiFi-first model. It allows operators to pay just for the capacity they need, rather…