Regarding ColdKey, the project may look cool and satisfy some coiners' egos or whatever, but from the very beginning it was an idea based on trusting the creator, which is an instant no-no when it comes to Bitcoin.
Its true that the entire business model is dependent on trust but there are still some reputable physical cold storage collectible makers like Casascius and Kialara that have never had any such incident. Reputation is the most important thing for anybody who does business in bitcoin, but yeah obviously its not a failsafe hook to hang a customer's hat on.
This event is pretty unprecedented and will definitely set physical collectibles back for a while. Yogg was among the most trusted members of the forum. Sucks all the way around.