Cool...
I am using Hide Bar to hide them, and GMD Gesture Control for the gestures to replace them. GMD Gesture Control can also hide the nav buttons but it causes a stuttering ever x number of seconds whereas Hide Bar does not. But GMD Gesture Control's feature to restore the nav buttons when the sleep button is pressed allows me to get them back in a game where the gestures do not work. Hide Bar alone doesn't do this and I have been stuck with no way to get out--other than having to get creative.
That said I would prefer an option for not hiding the status bar--and only the nav buttons. Can the mods you mention leave the status bar in place, or do they go whenever the nav buttons go away?
Michael