Oh Dear, this is as funny as it is unfortunate.  Here is a rough chain of events

  1. Kain visits Harvery Norman
  2. Kain sees that some poor sod has used an Xbox 360 to prop up a Sony Playstation 3 display
  3. Kain thinks this is funny and takes a photo, and posts it to flickr
  4. The internet find’s it, it get’s on digg,
  5. World goes stupid for a few hours
  6. Harvey Norman also goes stupid for a few hours
  7. Sony and Harvey Norman take down the offending display
  8. World goes back to it’s normal self

Sydney Morning Herald has all the details :)