I feel your pain...I just spent the last few hours engaged in an epic, losing battle trying to get "On Demand" working, and dealing with the aftermath. The devices (iphone / ipad) simply would not pair no matter what. I re-booted both numerous times, and went so far as to uninstall iTether (which was working fine; I was intrigued by On Demand's auto-connect feature). After finally throwing in the towel, I reinstalled iTether and attempted to pair the devices. I would get to the point where you enter the passcode into them, but they wouldn't connect. I re-read iTether's instructions ad infinitum, and tried forever to get back to where I was before. I removed MyWi from both devices, uninstalling, reinstalling, uninstalling iTether, reinstalling, still wouldn't work. Finally rebooted iPhone after uninstalling MyWi, and was able to pair devices with iTether, to great relief. Reinstalled MyWi, and sure enough, it broke iTether. Hopefully MyWi will be updated and actually work (or at least allow iTether to work), otherwise I'm out $20.00. In the meantime I'm looking into installing an older version of MyWi.