GNOME has been updated to version 2.20 and is available from testing. Though extra care has been taken to make this version of GNOME the best one packaged ever on Archlinux, we need people to test it.
This version of GNOME in testing replaces the GNOME 2.19 repository which has been used while GNOME 2.20 was still in development. Be sure to remove the gnome repository from pacman.conf, as that repository is no longer updated and will get removed without notice in a short while.
Check http://www.gnome.org/start/2.20/notes/en/ to discover what's new in this release.
Please report bugs to flyspray, while discussion is possible in the GNOME 2.19 announce thread: http://bbs.archlinux.org/viewtopic.php?id=36783