Apple has been exploring the concept of an iPhone- and iTunes-based system for event tickets, a patent application reveals. People would be able to buy a ticket in one of several ways, such as through a manned or unmanned kiosk, or else on a computer, or directly through their phone. Kiosk tickets could be transferred through near-field communication, or special paper passes, which could copy data to an iPhone via an RFID tag. Alternately, a camera might be used to scan a barcode or matrix.