"Stealthy selfie service Snapchat has added a new feature to its mobile apps that makes it possible for users to hang onto messages for longer than the senders may have intended."
Yeah, it's called facebook, twitter, flickr, dropshots, photobucket, tinypic and freaking hundreds more. Not only do they do a better job (they keep photos indefitely vs a day) they've ALL been doing it for much longer.
Like most of the other comments, here, this is such a massive fail, they're no longer offering a specific service that others' don't, rather than a substandard service that others have pretty much nailed.