Whoa! I've been looking forward to the new features coming to Tivo soon, and this image provides the first possible look into what it might mean. If it's using full rendezvous support, where photos and music are streamed over a home network from an OS X machine, I'll totally be using this.
There are a variety of products that let you stream music from a computer to a stereo system, but cost a couple hundred dollars. It'll be interesting to see how Tivo continues along an Apple-like path of making the DVR into a media hub.