I don't know. They added the percentage on the Phantom 2's. I like ma used and V available on my display. Up to DJI. I am just a user like you.
Do you think DJI will ever add in the Amp current readings on the iOSD?
I got everything to work, don't setup the system as the first part of the manual says on page 6 (1.1.2 Hardware Connection Diagram), setup everything as page 38 shows to (2.4G Data Link connection diagram) even if you are not using the 2.4G Data Link addon. FYI