Nikon has posted a Distortion Control Data Firmware Update. Distortion control data are used to correct barrel and pincushion distortion during shooting and editing. They can be loaded into cameras that support distortion control. The D4 is one of the DSLRs which support DC.
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The data is transmitted within the exif data for use by Capture NX2 if desired, but it doesn't actually alter the files in the camera. Third party software converters such as Adobe Camera Raw and DXO Optics Pro don't read the data and are therefore unaffected.
Vikus, Marty is absolutely correct. Neither the D3 or the D3s support DCDF. The D4, along with the D800/800E are the first Nikon FX sensor based cameras to use this feature. I imagine this will be a standard Nikon feature for all their future DSLR's, but there is no backward compatibility.