I dont phantom 2 has any video or data downlink but has cables ready to go to make it easy to add these on later. It would also be running 2.4g radio futaba compatible most likely as the later v1.1+ phantoms do.
The vision app needs the vision camera as you cant remotly control a gopro in the same way the only function you could do would be gimbal pitch control but this can be done via radio as normal with 7th channel or 3rd party radio's. Canbus is good as it was rather silly to need to add pmu v2 to the newer boards to get OSD or bluetooth functions in v1.1 phantoms.
The vision app needs the vision camera as you cant remotly control a gopro in the same way the only function you could do would be gimbal pitch control but this can be done via radio as normal with 7th channel or 3rd party radio's. Canbus is good as it was rather silly to need to add pmu v2 to the newer boards to get OSD or bluetooth functions in v1.1 phantoms.