Festival organisers have already utilized RFID-enabled wristbands to make it easier for music lovers to update their online profiles on-the-go. Bringing this concept into everyday life, Italian jeans brand Replay has created its Social Denim range, which incorporates a device to enable wearers to instantly share their emotions or location. The jeans contain a fifth pocket made of vinyl, designed to hold a small Bluetooth transmitter, which can be coupled with the customer's smartphone. They can then use the handy device to click one of eight mood buttons, ranging from positive to negative, or where they are at that moment.…