Wow, pretty good. I wonder if there will be any scandals coming from various blur-redacted, sensitive documents, if they can be de-blurred as well as this demonstrates?
If you blur a region and than resize you loose that extra bit information you'd normally need to be able to do a good de-blur afterwards.
But this does makes me think, who knows terrorists could be using regular photo's, looking not important at all at first sight, to store messages. So you'd have to de-blur an out-of-focus zone to reveil the message.