1. Breaks compatibility with third party batteries.2. Breaks compatibility with third party lenses.3. Dangles some minor fix carrot to ensure users 'update' to 'take advantage' of features *1 and *2. 4. Fixes bug that allowed users to downgrade firmware to earlier versions.
After update - third party Pearstone battery from B&H still works fine... :-) Just FYI And BTW - why would you care since you don't have any Nikon equipment? :-) LOL...
Peter Nelson: With the advent and advances in m4/3 I have to say that I am not interested in another FF Pro DSLR fror anyone. I have two (2) FF DSLR's, a Canon 1DsMkII and an older Kodak SLR/n FF. I have an even older Nikon D1H Pro Camera as well. I like the IQ from all three. But, I am tired of the weight and size. When are Nikon and Canon going to realize that the day's of these large cameras are over due to advances in electronics and sensor's.
I haven't seen anything about 2 different cards madness...
So to me - cons are - 2 different cards, AF switch, different battery, bigger files (bad for PJ) with virtually the same IQ... I am keeping my 2 D3s bodies for sure... I will get D800 as a high res addition and video though... ;-)