Doing as exhaustive of a search as I could, I found a couple of interesting things. The Sony version of the parable seems to center on the Walkman (as opposed to a camera), which was built in the late 1970s, and either Akio Morita or Masaru Ibuka (co-founders of Sony). However, the earliest reference on the Internet to it I can find is from September 2002 [^1], about a year after the iPod was released, making its origins inconclusive. The fact that it is linked to multiple founders of powerful technology companies suggests to me that it is apocryphal.
[^1]: http://forums.dpreview.com/forums/read.asp?forum=1000&me...