new mime types

[Gerold J. Wucherpfennig]

Is it possible to define new mime types and don't define them via
"magic" file or file extention, but by more flexible means?

An example:
Is is possible to define a new mimetype inode/mountpoint
and set this mime type to local directories whose path is contained
in /etc/fstab and /etc/mtab?

I mean how difficult would it be to code something like that and may
it ever be accepted into kde mainline?


Regards
Gerold