A very Successful test of the DroidPlanner Android App, connected through a 3DR Radio Kit and the 3DR APM2.5
Before taking off, I ensured that there is a proper connection between the APM and the Tablet and that both devices's GPS is locked. Then I take the drone up and put it in Loiter mode.
Follow Mode must be activated in the Settings of the app first. Then I turn on Follow mode. Warning, before turning on Follow Mode, make sure your transmitter is set to Loiter and that the throttle is up and not zero. Then remember to set the default height, I set mine to 6m in this video. The default is 100m so be careful otherwise your drone will shoot straight up.
I am extremely pleased with the performance of the follow mode, it works very well!