Krpm2info
Display informations on a package file or extract content
... it to a given place).
Note that it can only process files, not installed packages; and only RPM packages.
The choice is made through a small initial dialog (Display details is the default).
A tarball file (.bz2) and a source rpm for Mandriva & Mageia are available.
Provided Makefile is used to install it (no build process is required). See README
Krpm2info requires kdialog, Dbus and konqueror.