Nikon patents digital back for film cameras

Now I will be a happy traveler if they do this for a F or F2.

Nikon patents a digital back for 35mm film SLR cameras | Nikon Rumors

F5 for me!

That would be so cool. What would be even cooler is if you could choose from, say, three different megapixel levels much like one can do for medium format digital cameras, like a 16, 24, 36MP.