TwonkyMedia Manager allows you to share your media on compatible devices in your home. If you want to listen to a genre of music in a specific room you can have the media streamed to that specific device.
At the same time you could be pushing images to your media capable television set.
The TwonkyMedia Manager streams your music, video, photos to devices throughout your home.
The only question that I did not get a firm answer from the folks at TwonkyMedia was how many media devices they support. Reviewing their website I see any device bearing a UPnP or DLNA logo are streaming devices they support.