-There were no Core 2 packages for 3.0
All an issue of resources and timing. As somebody else wrote, 3.3.1 is now available.
-It's not possible to get mp3-support by installing an additional RPM like it is for gnome, you have to recompile kdemultimedia. -Since KDE 3.3 it's more difficult to recompile kdemultimedia as the SRPM includes patched sources, you have to go to ftp.kde.org and get the original sources and place them in RPMBUILDIR/src manually
Something we cannot change from engineering. Too bad we cannot ship mp3.
-kdemultimedia has random applications disabled without stating a reason for this anywhere. Juk or Amarok, I don't recall exactly, in KDE 3.2 and 3.3.0, koncd in 3.3.1
This is normally only done if they don't work.
-Automatic login with kdm doesn't work since 3.2
Send in patches and I am sure Than Ngo will add them. Probably also a bug in original kde sources or something broken in the RH packaged ones?
-KDE 3.3.1 won't be in Core 3 but come as "one of the first updates", meaning that I'll have to download about 200 mb some days after I downloaded Core 3.
Right, that is a real pain. I would have personally moved kde in as this is a real bug-fix release, but now it has to go out as an update release.
Thanks for your report and I hope you do enjoy KDE as packaged from us,
Florian La Roche