Not only D200 can make use of this?but D40X as well?

it can be used by ANY camera :) any camera with exif standard 2.1 or above :)

i'm such an effective SOny sales XDD eavne is getting one of these as well XDD

but she's only buying it after i bought it.....so there's a possibility that she's influenced by me, not you XDDD

Got it :)
How much is this thing?

i got it for HK$790 in a Sony shop :)