The new Eye-Fi firmware now supports the D800 and works quite nicely.
Today I put it through a good test and it worked nicely.
Here is my setup.
Compact Flash Card and SD Eye-Fi card in the camera.
Camera is setup for Raw saved to the CF card and Jpeg saved to the Eye-Fi.
Samsung Slate PC tablet running full Window & Professional. (Much better than the iPad because I can calibrate the monitor with the same software and hardware I use
on my workstation in the office)
I use this in and out of the studio.
The WiFi network is created by the Samsung Slate that has the Intel My WiFi chip.
The Samsung can if needed also be on another Wifi network if needed.
The Eye-Fi sees the Samsung generated WiFi network and works just like it was on any other network.
The Eye-Fi software on the Samsung collects the files and I setup Lightroom to watch that folder
and auto import the files to lightroom. I can even apply a processing so that Lightroom will preview my final look as I
shoot... for example sepia black and white. As I shoot Lightroom pops up the last image full frame.
I then have a plug-in that can show the processed lightroom image on Android devices (I may also make one for Apple) over the WiFi
network. The app does not save the file or allow the file to be saved on the Android device. It's just for viewing.
While the Eye-Fi is slow for the huge D800 raw files it works nicely with Jpeg. And Jpeg is all I need for preview while I shoot.
It takes about 6 to 7 seconds for the file to download and lightroom to import and apply the processing to the image.
This however is not a problem because the camera shoots to the card. Also the download keeps going as the previous files are being imported by lightroom.
I can still shoot rapid fire. The cards such up the shots no problem and the Eye-fi card can store new files while it is sending out files over the WiFi.
The whole lot fits in my small camera bag. Very nice setup.
What is also nice is that the Samsung Tablet has a built in on screen Wacom tablet, so no finger prints on the display
The range is not huge. It works best if you are in the 20 ft range.