Another incremental build of ICS has been leaked for the Droid 4. The build number is 6.16.211 and 6.16.212 should be leaked soon. Before you go any further be advised that you can not fastboot back to stock from any of these leaks. So once you flash you may be off the official Verizon Over The Air update path for good. These leaks are a good sign as you can see that Motorola is getting closer every day to an official build! Yesterday we announced a soak test for ICS on the Droid Razr so hopefully this device will follow suite. If we are lucky we may see an official build on both devices by the end of the summer.
For the files check out this thread
How to install guide can be found here