I'll start this off with a massive disclaimer: do not do this. There's a decent chance that this will break your new Galaxy Nexus phone's basic functionality, and if you don't have a method of restoring a backup or flashing a recovery, you'll be very much out of luck. That said, when Google announced that Ice Cream Sandwich would change its interface depending upon whether it was on a tablet or smartphone, I instantly thought of the smartphone launcher hidden in Honeycomb. Poking around on my rooted Nexus I decided to try the same trick in reverse, setting the LCD density to a much lower value - essentially tricking the phone into thinking it had a ten inch screen. The result? A rudimentary (and very much broken) Ice Cream Sandwich tablet interface on the Galaxy Nexus.