Second WBO2 will never be implemented. No way with current hardware.
Wha? Webshop claims 2 WBO2 heater drivers, and http://fireandfuel.ca/content/view/17/84/ claims 2 WBO2 controllers onboard. I've been under the impression that this is the case all along... Is it just a firmware issue?
I believe what is meant by the hardware comment is that there is no way to calibrate the second WBO2 sensor, seperately from the first. However, I find that the consistancy of sensors these days is quite close, that I dont think it really matters. I calibrated a brand new sensor, then used a sensor that had been on the wifes Seat Arosa for 30k miles, then a sensor which had been abused on the Mini with the VEMS, and a new but used sensor. ALL were within 0.2% of each other with only one calibration constant!!
As for the firmware. I asked for a monitoring only second channel, this was being looked at at the time of my asking, but, because I changed direction with the engine configuration, I never pushed it any further.