Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
Without lock + person tripping over the cable = unplugged cable.
With "CES 2009 Innovations Honoree Award" lock + person tripping over the cable = few scenarios:
1. If it's a notebook, it goes flying off the table, crashes and burns.
2. Desktop? Then the entire video connector or the cable gets ripped.
Didn't we have this type of "innovation" back in the days of 9/15 pin video cables? I remember they were called ... that's rigth, screws.
This is by far the stupidest thing I've seen this week, but it's only Monday, I have high hopes.