Rio Central.

Hackable yes, but hasn't been hacked nearly as much as the empeg has been hacked.

I'd love to see a straight UPNP hack for it. Right now, I can use it to serve up music only to my Rio Receivers, not to any other media player devices. I'm running a great program called Chorale that re-publishes the Central's music to UPNP, but it requires that I run another 100-percent uptime server to do it.