As my D300 doesn't take SD cards I had to use an SD to CF converter but that was fairly painless. I just had to tweak a setting about power to the card slot.
It was the statement on the Eye-fi site that their cards will not work in the nikons that put me off spending the best part of £100 for something that shouldn't work!
It seems that the Eye-fi pro x2 is the one recommended for use with the ipad, and it does come with the app to run it.
HOWEVER, here is some info on the eye-fi site re compatibility: Link
"File corruption of photos" is worrying, as is "formatting the card in a cf adapter can lead to failure of the card"![]()
Hi
This might be interesting to you.
http://www.robgalbraith.com/bins/multi_page.asp?cid=7-10055-10851
Graham