Using it, a person could plug a handheld or digital camera straight into a printer to produce a photo. PDAs also could swap documents directly or back up data by connecting directly to a portable hard drive. The technology is also expected to be used in cell phones and MP3 players.
Can't we already do all of that, but in different ways? Printers come with memory card slots, so you can print pictures without a computer and can't PDAs swap documents via Bluetooth? The same goes for cell phones, although I do not know of any MP3 players that can/will sync through Bluetooth.