Intel has built a tiny 3G modem designed for the massive numbers of small devices that will be part of the Internet of things. The chip maker on Aug. 26 launched the XMM 6255, which officials called the world’s smallest standalone 3G modem. They hope it will become the wireless solution for many of the billions of devices—from sensors and wearable devices to security and industrial systems, that are expected to connect to the Internet and each other over the next several years.