There is kiso : "KIso is a GUI for KDE 3 which has the purpose to make creating, extracting and editing of ISO-Images as easy as possible"
http://kiso.sourceforge.net/
There is Mount ISO image : "Mount ISO Image is an advanced script which allows to perform multiple operations with ISO, NRG (Nero Burning ROM), UDF (DVD), CUE/BIN, CCD/IMG/SUB (CloneCD), XDVDFS (XBOX) images.
Mount/unmount operations can be performed in two different ways: using kdesu or sudo. During the installation you'll be offered to choose a variant to use.
Mount:
Right-click an ".ISO" file and choose "Actions -> Manage ISO -> Mount Image". Image file will be mounted to folder on Desktop, the corresponding folder will be opened and raised.
Unmount:
Right-click an ".ISO" file and choose "Actions -> Manage ISO -> Unmount Image". The corresponding folder will be removed from the desktop automagically."
http://kde-apps.org/content/show.php?content=11577
