>Do you think the CF + XQD for the D4 was selected so that >users could compare and give feedback? >I would have preferred XQD + SD in my D800, but two XQD cards >would have been better yet. >That + more, faster memory pipeline probably would have >increased the frame rate and general performance. >Maybe there will be a D800s?
Here is what I think happened. During the development of the D4, There were two competing standards of cards faster than the current technology. One Sony was big into (XQD) the other SanDisk was big into (CFast). Because of Sony's integral relationship with Nikon, they won, but Nikon was loathe to jump there without more people saying they would jump on.
Now, a year or more later, SanDisk has announced they are not going to play in the XQD market, but are going to forge ahead with CFast. Canon is on board with CFast as well. And we are about to see a divergence in the cards.
And yet again, Sony splits the market around proprietary media. Just like VHS/Beta, BluRay/HD-DVD, Memory Stick/SD. And Nikon is going to be left holding the bag.