Well thanks to a very generous offer from one of our forum members @Squiddley I went to his place today and picked up a RE700 for my Phantom 2 Vision. I did some hand wringing about the camera MAC address for binding but since I still had my serviceable RE500 I used it and connected everything and drilled down in the app to 'binding' and there was the MAC address of the camera. Then I connected with the new RE700 and put these numbers in the binding pane. I have to admit that it took a few attempts with powering cycles and a few resets but in the end all went pretty easy. It's a bit breezy here now so, with weather permitting. I'll fly tomorrow and give it a good test.