I note that B&H has both the Lexar 64GB XQD Professional 1100x Memory Card, and the Lexar 32GB XQD Professional 1100x Memory Card for sale now. The 64GB version is $155 more than the Sony 64GB Series S Card, and the 32GB version is $30 more than the Sony 32GB Series S Card.
Both essentially run at the same speed, though the Sony is rated at about 8.3% faster in writing. In my D4, I couldn't successfully measure the difference, but with the Sony XQD cards being less expensive, I see no reason to purchase the Lexar cards at this time.
The more popular 32GB cards from both manufacturers are backordered at this time, but the larger 64GB cards are both in stock.
The Lexar XQD cards are not yet available at Adorama at this point, but I'm sure they will be in the future. The Sony XQD cards are available there. Both Sony cards are quite a bit more expensive at Adorama.
Hmm... Amazon has Sony 32S@$211 (3rd party seller; $258 directly from Amazon, out of stock), Lexar 32@$300 (also out of stock). Sony 64S @ $350 vs Lexar 64 @ $580 (!?! no surprise that's still in stock).
Wondering what happened with Sony H cards... I got a 32 for $118 a couple weeks ago; now are $193.
Disappointed Lexar's entry hasn't done anything to bring prices down. Oh well, at least I don't need another anytime soon. Hopefully at least one more camera will be out by that time.
I only use Lexar cards - except the XQD. They are price too much higher than the Sony cards and they don't even have a 16GB version. I prefer to improve my odds by having 2 16GB cards instead of 1 32GB.
Frankly I wish there was an SD or 2nd CF option for the D4, don't think the buffer speed is that big a deal.
I would not put too much weight on the Nikon website for current information on newer cards. Nikon is very slow to test and update the approved card list - and they stop updating completely after a period of time. The Lexar XQD cards work fine.
Thanks for sending a note to Nikon Support. Hopefully they will bring the site up to date shortly. I suspect they have a specific testing protocol and need to schedule time for testing and formal approval before talking about updating their support list. That probably takes 2-3 months after general release in the best of cases.