We’ll see just how true this little rumour is in a matter of days, but given the original source of all the speculative Internet shenanigans appears to have been Gizmodo—a usually professional gadget site—we’d err on the side of truth as opposed to site hit whoring, which Gizmodo don’t really need anyway.

Rumours originally surfaced a couple of weeks ago that the iPhone was to be shown by a certain Mr. Steve Jobs at the Macworld Expo in January. And now more rumours have arisen concerning its actual arrival on the scene this coming Monday, which tend to point at a little timely headline grabbing in light of Nintendo Wii and PlayStation 3 hogging most of the gadget-related headlines as of late.

The iPhone is thought to be a hybrid mobile iPod device that will be a GSM/EDGE (2.5G) phone, and not a UMTS (3G) device. The reasoning behind this assertion is that the technology behind 2.5G is smaller—and we all know how much Apple likes its tiny devices.

As usual, you’ll know more just as soon as we get it.