Yeah, I think the reason for the confusion's been pinpointed here. On completion of the install of Lumia Cyan and the Windows 8.1 update released by AT&T recently (my phone notified of the update this morning - 8/18 - but it looks like it was released last Friday), the user got a text message describing the features, including the Live Folder feature with a link to a cool video. Just glad to see that I'm not the only one who wasted time today thinking that I had a bad install or some other obscure problem. Of course, AT&T support is completely clueless about the issue - after explaining what Live Folders was to the rep and waiting on hold for 10 minutes, I was given MS support general number.