There is currently some breakage with GDM in the gnome-unstable repository. I was unable to get GNOME 3.8 started. I got the following assertion errors in my logs, but I can't begin to decode them.
Mar 28 20:17:31 pc.kyle.tk gdm-launch-environment][2749]: GLib-CRITICAL: g_variant_compare: assertion `!g_variant_is_container (a)' failed Mar 28 20:17:31 pc.kyle.tk gdm-launch-environment][2749]: GLib-CRITICAL: g_variant_compare: assertion `!g_variant_is_container (a)' failed ~Kyle http://kyle.tk/ -- "Kyle? ... She calls her cake, Kyle?" Out of This World, season 2 episode 21 - "The Amazing Evie"
