An idea for a feature - resolving e.g. kde* for all kde-pkgs

Question

first, before i start complaining about a missing feature, pacman is the best package-manager i know, and the system used in archlinux managing the OS parts and inventory of programms in it are simple and great
here the problem that brings me to this idea:
say i want to remove kde
-> what you have now to do: pacman -R kde{???}, well no actually you have first to go to the internet and have a search in the package-section to find out what packages are part of kde (kdebase, kdelibs ...)
here the idea:
what about being able to simply type
pacman -Q kde*
to find out what kde packages are installed on your system ... and futuremore being able to do also
pacman -R kde* #to remove all kde packages
#or
pacman -Rc kde* #to remove all kde and other related to kde packages
the same would be also cool for installing packages
->just to show you what happens now in pacman:
pacman -Q gnome*
Package "gnome*" was not found.
what do you think?

Answer 1

The installing groups is actually already implemented in the beta of 2.6, which is in ftp.archlinux.org/other/pacman
From the ChangeLog itself:
Added group handling, so one can run 'pacman -S kde' and
                install all files from the KDE group
Not sure about the other things though, those sound like some very good ideas that should be considered and hopefully they aren't too hard to implement.
Kritoke