This is the moment that we have been waiting for, an official build of ICS for our beloved Droid 4 devices. Except this isn't really an official build. That may not come for the next several months. What we do have is proof that Motorola IS working on an ICS build. This build was leaked via the Cheescake app. This will take you off the official upgrade path so you WILL be stranded. You won't be able to FXZ your way back to gingerbread either, and this build is not rootable via any known method so far
. I would highly encourage you to stay away from this build, unless you are comfortable with being on an unofficial leak for the longevity of your device. There are other ways to experience ICS on your D4 now like CyanogenMod 9 via Safestrap. However if curiosity is getting the best of you and you must flash this just know you have been warned. The file and install method can be found in the link below!
Grab it here