Copy to Pendrive is a service menu that allows you to copy files or folders directy to your pendrive (memory key)! When the operation is complete, the unity is umounted.
This is based on http://www.kde-apps.org/content/show.php?content=18406
It is recommended a recent version of the Kernel, which sees pendrives as /dev/hda or /dev/hda1.
If you have a SCSI/SATA harddisk, the system will set your pendrive to /dev/hdb or /dev/hdb1. So, in this case, you must uncomment the last line of the files and comment the previous.
To install, just unzip the files(and set permissions if necessary) to $KDE/share/apps/konqueror/servicemenus as root.