The speaker I saw was the same concept but built by someone else. I haven't listened to any of the sound projector setups so I can't comment on them. Although I think there are more and more people like you who have a HDTV and want better sound but not the mess of wires surround sound brings so we will probably see more of this type of thing.
Yamaha builds some nice stuff and if it were me I would go for it but then I'm a nutjob... so far this month I have orders two knife's (spiderco and SOG) two fountain pens (vintage Schafer and a new Namiki) and two boxes of cigars off the Internet.
I see they also make a 1000, more wattage I suppose?