[KDE/Mac] file dialogs

["René J.V. Bertin"]

Hello list,

A simple question that just occurred to me, which may or may not have a simple answer:
Why does KDE use its own file open, save, etc. dialogs? I can understand that they fit in better with the visual style (esp. when changing from the default, native style), but they do degrade overall integration with the rest of the system, IMHO.
They lack easy volume (disk, mount, ...) selection, and also the drag-and-drop functionality that makes it so easy to navigate to a particular folder in a blink.
Standard Qt applications do use OS X native dialogs (using Carbon?), so it'd seem KDE does something extra to install their own dialogs ... and thus it might be relatively easy to let the user decide which type to use? (OpenOffice has or used to have such an option.)

Thoughts?

René.