After installing openSUSE 13.1 RC1 yesterday, I noticed that I was having some very strange graphical issues with my GNOME 3.10 installation.
That is probably my favorite one.
Working with some helpful friends from the openSUSE Forums, we were able to figure out which bug(s) I was running into and also figure out a pretty easy solution until a patch is released.
Basically, turn off automatic login for your account and then log in as normal. After making that simple change, everything is working fine in GNOME. If you are running into similar issues (did not happen in openSUSE 12.3 or a KDE installation of 13.1 RC1), then give the fix and report it on the bug trackers.