In a recent article from Macrumors, the recent iPhone firmware has evidence of the next generation iPhone.

In a property list inside the update image (USBDeviceConfiguration.plist), the suspected new iPhone is designated “iPhone2,1” while the current iPhone is “iPhone1,2.”

MacRumors says that the original iPod touch is identified as “iPod1,1” while the most recent model is “iPod2,1.” This change added the new design, added speaker, microphone, and volume control.

We all know an iPhone is coming. We aren’t going to have an iPhone3G for the rest of our lives. The question is when? Macrumors also points out that the answer may be in 5 to 6 months based on an iPhone cycle that occurs in June. Hmmm…

Like I always say, time will tell.