Technically you can still share a photo taken outside of Snapchat (on iOS at least). You just can't add it to your public timeline. It can only be sent to your

Technically you can still share a photo taken outside of Snapchat (on iOS at least). You just can't add it to your public timeline. It can only be sent to your friends/contacts list. But if you wind up doing select-all on the friends list, it pretty much works out the same way as sharing to the timeline view.