Interesting ... methinks another peek at the API docs is in order, since that could be potentially useful.
I still think Flickr is a better solution for image sharing though.
Indeed - but Flickr is intended for photo hosting whereas Dropbox will host anything. It is incredibly useful and gives you full control.
I use Dropbox for images if it is just the one or for a short period (you can move it back out of public at anytime) or you want to share something non standard (RAW, CRW, etc.) that Flickr, etc can't handle. It is also criminally simple to use - which is good for customers...
If anyone wants a reference to Dropbox (you get free space if you refer a friend) then pm me and I'd be delighted to help.