I have a 1.8 V1 which I got (as an upgrade replacement from a 1.7) in late June 2004, which (upon checking today) has the 3.818 firmware. It does not have POP as far as I know, but some signatures here show that there are V1s out there with 3.818 firmware and POP2. How is this possible? Either the firmware has the POP support or it doesn't, or is the POP upgrade a change to the hardware rather than software?
Maybe my unit has POP but it's turned off by default, and they changed it to on by default in newer firmware builds?