If I understand it correctly, the ICS update will make the home, search menu and back buttons at the bottom of the phone useless? So will ICS then take up some of the 4.3 inch of screen space to display the same buttons? So the 4 bottom buttons will just be there at the bottom taking up space and being useless? I am just not sure what ICS will really look like on a phone designed for toher versions of android?