ARM has used its TechCon stage to announce a swathe of IoT silicon developments, centered around its mbed OS platform – which has grown to over 55 partners and 150,000 developers, since its launch in October 2014. The mbed Device Connector is a free service that ARM says businesses can use to connect and manage IoT devices. These end-points would be using ARMs mbed OS platform, which now includes new reference designs and a Technology Preview version, as part of the announcement. ARM says the combination will shorten hardware design time. ARM says that the two reference designs are intended to help businesses meet their connectivity, security and productivity requirements – and that the mbed reference designs will help cut…