Very nice app - I even blogged it.

I would like to make a few suggestions, if I may:

in the full-screen mode when you are going through the files and reach the end of the directory... nothing happens. You are just stuck confused without any indication that you have simply run out of files.

The user-friendly behavior would be:

1) Indicate that the end of the directory has been reached, and
2) give an option to either wrap around or go up (or down) a folder.

The perfect execution would overlay a nice dark directory tree on top of the last image and allow to either traverse it with arrow keys or just press "space" (or whatever is configured to go to the next image) to wrap around the current folder.

An extra hotkey to bring up this directory overlay wold be a bonus ;-)

This is the only thing (beside resizing) that stands between Xee and total perfection!

Many many thanks in advance.

~Andrey