That's really good news about Dropbox, thanks.
As for the recursive slideshows, let's say I have a folder hierarchy such as :-
... and so on ...
If I navigate to January within 2008 I would want to see a slideshow of the files in that folder alone - which is how it works now. If I just navigate to 2008 I would want to see all the files for that year, starting with January, then February, and so on. If I choose slideshow at the root - in this case Photos - I would want all files from 2008 followed by all files from 2009, etc.
Furthermore, like the built-in Photos app, i'd like the option to display the photos in random order, which would treat all files from the current folder level downwards as one big list. You see, when I'm not using iPad I like to leave it running as a photo frame and don't want to have to keep manually changing folders.
Hope all that makes a bit of sense,