Last month Apple started sending out emails to it's users that took part in the Messages Beta program stating that it would end on December 14th. It worked without any problem yesterday even though I didn't expect it to. This morning it finally stopped working and prompted me with a message to reinstall iChat. Now just to get the Message.app file from someone with Mountain Lion and see how putting it on my computer with Lion works! EDIT: Lololol, so in my dock it still says "Messages," even after a restart. I thought they might have kept that name instead of iChat for some reason, but in my applications folder it's under iChat. EDIT: Aww, after opening it changed the name back to normal.