Thumbnail browsers (Mac Dock Bar-ish)

I’ve been searching for an attractive way to allow users to browse a set
of thumbnails on a single line something along the lines of the Mac Dock
bar. I’ve found this cool Javascript app:

but just wondered if there was anything else out there like this
(doesn’t have to operate the same way as this. I’m looking for options
here). :slight_smile:

Something that’s been written to integrate into a rails app would be
even more fantastic :slight_smile: