Here's an interesting way to take advantage of the Bluetooth-enabled mp3 playing capabilities of your cell phone: pipe them tunes into a tube! That's the idea behind the Linx B-Tube, a 6-inch long blue gray tube with a speaker on each end that supports both Bluetooth and standard audio connections. The B-Tube also comes with a velvety carrying case for portability and built-in microphone so you can use it for hands free communications, although why your first choice for hands free would be a six-inch long cylinder is beyond me. PCRetail thinks the sound is pretty good, but I have to wonder whether such a device is really practical.