It would be very useful to have a lock screen command of sort (I'm used to it from another dev app).
It would help get rid of all the blinks and flashes when closing and opening apps and subapps. Now I have to spend loads of time to try to eliminate the blinks as much as possible and knowing that it'll still happen on slower machines.
So a 'lock screen' and 'unlock screen' would be super.
---- end rant ------