Below, Bluetooth , which happens to be...wireless communication technology. I remember attending 2001: A Space Odyssey soon after it appeared in theaters in 1968. I must have been about 9 or 10. But one thing I remember clearly is early in the film, when they showed the video telephones, people in the audience sneered and snickered in disbelief. It was thought that such a thing was pure science fiction and out of the bounds of reasonable reach, 
even for a futuristic movie. Surprise!Star Trek the movie 2009 is in production I wonder what futuristic devices they will be showing us and if they will come true!!
