Sounds cool when you first read about it but wouldn't it make more sense to have your a/v receiver accept the network connection? That way you can convert any type of signal to surround using the included DTS Neo:6 or Dolby IIx processing, use your receiver's eq settings, etc.

This just means adding another set of CAT5/6 wires to all speakers when you can have just one network cable hooked up to the receiver (which is already connected to your speakers via speaker cable). And as Ken already stated, only works with MP3 and wav.