Chromecast to serve up some tunes

Google may have more than one Chromecast to show when it announces new products later this month. According to 9to5Google, Google is also working on a Chromecast that's designed for streaming music and other audio. It's apparently called Chromecast Audio, and it'll hook up to speakers through a standard 3.5mm headphone cable. But seriously I just don't care. How is such a pointless device going to help the cord-cutters among us stream their Netflix or whatever else they use to their TV? And why would you want one when other devices exist for their intended purpose?