Not all of us have the time required to go digging around in device firmware. Fortunately, there are sites like Mac Rumors, which spends a good chunk of its day doing just that.

Digging around in the iPhone's 2.x Firmware, the site made an interesting little discovery that may signal the existence (be it physically or conceptually) of the next version of Apple's popular handset. In the firmware, the device is referred to as "iPhone2,1." The company uses these designations to distinguish iterations of the phone. The first iPhone was iPhone 1,1. The 3G was designated the iPhone 1,2.

After even more digging, a developer noticed the company had two such devices listed s being in use.