I find wifi seems to be the best choice when it comes to the speed of the data transmission and seems has a wider range of transmission compared to the Bluetooth. However, when regards to the power usage, Bluetooth usually has the lower energy consumption.
sweet but think still wrong direction for productive work flow ! more productive work flow would bring the controller software directly to the gimbal IE small touch screen computer with BGC software attached to the gimbal so you do not need a cell phone or PC to setup and modify the gimbal. similar to companion computer used with pixhawk. similar to the new DJI gimbl