Upload & Sell: Off
Well, I finally got the adapter this am...long story...and I tested it already. I did NOT pry off the metal plates, because I wanted to see how limited the range was, first. Range was determined by how far the camera was from my router. As you can see...the wifi/adapter combo worked splendidly straight out of the box. Camera body is one of the very first Nikon D300 (November 2007 - which do have UDMA support - I think they all support udma), with the MB-D10 vertical grip attached. Eye-Fi card used was the 8gb Eye-Fi X2 pro, firmware version v4.2. All possible camera settings were changed to stay on, and not sleep. I don't see any reason to pry off the metal plates.
Methodology: Shoot 10 images, set down camera, hit "start" on my ipod stop watch...walk to my laptop leaving the camera behind, and see how long the total transfer took. I realize that normal shooting might effect the timing some, but I wanted a single image average.
40' range thru a wall = 14.2 seconds per image (average of 10 jpg "fine" & "Large" 4288x2848) avg file size = 7300 KB
40' range thru a steel desk & commercial office partition = 10.2 seconds per image (average of 10 jpg "normal" & "Medium" 3216x2136) - avg file size = 2100 KB
As long as I can stay within a reasonable distance to my router, the Eye-FI/Adapter combo is a really slick wireless alternative to the WT-4. The Eye-Fi also sent the RAW Nefs, and xmp files by default - at least I don't remember setting that up. BTW, It also worked in my 5D mk II, and even had faster transfers. However, the file sizes were smaller - which may explain why.