Hmm.. photoshopped. XP but yea thats an awesome picture.. I'd do that, but my wall is basically solid black.. and it matters upon angle you view it at.
That is a really old trick. I saw this like 2 months ago. But it was a PSP that was see through. He even showed how you do it. You picture the same place with and without the object and then you simply use trusty photoshop