so, i'm now on kitkat, rooted.
I've tried immersive me, and it's quiet strange.
There's a blank area at the bottom of the screen on the launcher.
Sometime the softkeys are blacks (not transparent anymore), doesn't disappear.
i don't know, i'm not very satisfied with that.
Soft keys fade mod doesn't do the thing i want...
So, what to do?
wait for an update of autohide hotkeys?