Amazon's own smart assistant, if you can call her/it that, just got smarter. Alexa now lets you control music streaming via Pandora, iTunes, and Spotify using only the power of your own voice, a feature previously limited to the mobile apps. And that's not the only skills Amazon Echo has learned. She/it has also increased her treasure trove of Wikipedia knowledge and now even knows how to play a game of "Simon Says." All thanks to the latest update that Amazon is now pushing to its cloud-powered smart cylinder.