Pigeon frame

For those who are not very comfortable with today's technology, the Pigeon frame seems to be a great solution.

http://toronto.ctvnews.ca/video?clipId=561206&playlistId=1.2258853&binId=1.815892&playlistPageNum=1&binPageNum=1&hootPostID=7b1a811f782920c680a92c314737fdfa

Does anyone have this? If it's that simple, all grandparents should have one!