I sense that Nikon is trying over the last 2-3 years to establish a "complete" product line to retain the market number 1 position. If there are more ppl "wanting" a semi-pro body with full frame, then Nikon may just drop the price of D300 (usual marketing practise) and launch a higher-priced D300FullFrame (technically possible, and priced it higher so it stays as a premium product). So they can have 2 cash cows?
This is good, and perhaps to counter other manufacturer's "confirmed-rumour" of FF body (see other sub-forum), in region of 3k-4k ?