While the Samsung Galaxy Nexus boasts a generous 4.65-inch display, its usable real estate is almost similar to the 4.3-inch Samsung Galaxy S2. The reason being that the bottom part of the display is reserved for the Android 4.0 Ice Cream Sandwich virtual buttons.
Samsung Galaxy Nexus tweak allows for full screen usage
Now XDA member “mrx8836350” has found a workaround which removes these navigation buttons completely and allows you to utilize the full screen space of the Galaxy Nexus. The tweak instead relies on virtually overlaying the buttons on top of whatever you have running on the screen and it goes hidden when not in use.
Now this tweak requires modifying your phone’s Framework.res file so it isn't so simple to accomplish. However the full instructions are available at the source and we are certain many Samsung Galaxy Nexus buyers have been waiting a long time for such a mod to appear.
And in case you are unfamiliar, certain properly coded apps like YouTube are the ones that can utilize the full screen real estate of the Galaxy Nexus, the other apps instead see a grayed-out versions of the standard navigation buttons and hence why this tweak is big news.