The Droid4 has really seen new life as of late with some awesome new development based on the latest release of ICS! Developer "DroidDoesTh3ory" has created a new Rom "K1L0 Flatliner" This Rom is based on CM9 which is ICS so you must already be on the ICS update (6.6.217) If you are currently on a leak and unfamiliar with how to get to the official OTA update check my video guide here. Once on the ICS update you will need to be rooted. You can use "RazorsEdge" That root method can be found at the DroidForums youtube channel as well. You will need to install SafeStrap 2.11.
As You can tell from the images above this Rom is themed out to the max! Everything has been inverted and that looks pretty slick! You have Beats but it is for looks only you will actually be changing sound effects via MusicFX, You will need to turn off heptic feedback or your phone will vibrate 3x when you press a number in the dialer, Google Now is included but is not fully functional for now. This Rom is looking pretty good other than those few bugs. This is really a great sign for development on the Droid 4 which has been pretty stagnant lately.
Grab the Rom here!