Ah ok thanks. In that case, it does nothing for some apps! eg. if I am in the Google+ Android app and press the hardware menu button, it does nothing.
Calendar does nothing.
Hangouts does nothing.
If I am in Gmail, it pops up the menu (but at the bottom, and not where the hamburger is). Chrome pops the menu up.
Maps opens the side bar.
YouTube pops the menu up.
Drive opens the menu.
So it works for some but not for others. Perhaps you could enforce consistency or follow your own guidelines etc.? Go crack the whip.
If I am in Gmail, it pops up the menu (but at the bottom, and not where the hamburger is). Chrome pops the menu up. Maps opens the side bar. YouTube pops the menu up. Drive opens the menu.
So it works for some but not for others. Perhaps you could enforce consistency or follow your own guidelines etc.? Go crack the whip.