kio_clipboard is a kioslave (protocol) to access the KDE clipboard. It allows you to retrieve the contents of the clipboard in various different formats as if they were files. You can use it to upload a screenshot with Konqueror without saving it to a file. Or, you can use it as a tool to quickly convert between different file formats.
A directory notification module is included, meaning any file views automatically refresh whenever the contents of the clipboard change.
This is not an original idea. I saw something similar on here a long time ago but it seems to have disappeared.