Version:            (using KDE 4.1.1)
OS:                Linux
Installed from:    SuSE RPMs

When I plug USB stick, it mounting in KDE4 as (for example)

/dev/sdb1 on /media/disk type vfat (rw,nosuid,nodev,uid=1001)

As you can see, 'utf8' option losed, the names of files and folders with national symbols (Cyrillic, or German umlauts, for example) will be displaed incorrectly.

Then, mount the same USB stick in KDE3 on the same machine:

/dev/sdb1 on /media/disk type vfat (rw,nosuid,nodev,noatime,flush,uid=1001,utf8,shortname=lower)

the 'utf8' appear and national symbols displayed properly. Reboot and login into KDE4 session - this mounting options persist:

/dev/sdb1 on /media/disk type vfat (rw,nosuid,nodev,noatime,flush,uid=1001,utf8,shortname=lower)

Does KDE4 still use ~/.kde/share/config/mediamanagerrc file? (because I found changes in this file and this changes, maden in KDE3, reflecting in KDE4 session after re-login). 

Conclusion: need a GUI tool to make changes in mounting options for removable medias.