I'm surprised no one commented on the fact the D4 requires a new kind of battery. Besides that, it took Nikon long enough! Anyone with a D3, who tried out a D7000 would find a lot to like about this smaller, lighter body with better low light. I hope the D4 is even better. I am also surprised the D4 stuck with CF cards. Most computers come with slots for SD cards now. I'll wait a bit, when the price comes down. I sold my D3 and D3x in anticipation.