Unless I'm mistaken I feel that diydrones would rather all flights use a Tx, but are we not very close to a point where we can to put an end of the Tx for drone multirotors as the primary flying device. After all this is 'diydrones' not 'diyrc' and a Tx is just not very drone like.
I know there are some bad a$$ flyers out there, but for me I want more of a drone and less of an RC.
Push a button, take off, do a mission and return back home and autoland, use virtual controls if needed, more drone like.
With all the new functionality from that Arthur Benemann has packed into the latest droid planner 2, including 1 button take offs, follow me, dronie, guided and large screen phones and tablets it looks like we may be close. All the strides that DJI and Parrot has done with virtual joysticks that are extremely accurate cant we get away from requiring the Tx.
We have geofence RTL, battery low RTL and tons of failsafes, we have continue mission if lost signal for those long missions.
The Tx is a great backup to the phone, but I have no backup for my Tx anyhow so why would I need a backup for my phone/tablet. If battery on phone dies it can return launch.
Somehow the new Ghost is not even requiring a Tx at all.
Just my thoughts as id like to say bye forever of the requirement of a Tx :-)