At October's Windows Phone 8 launch event, Microsoft's Joe Belfiore stood on stage and eagerly announced a laundry list of popular apps that were confirmed to be coming to the platform in the coming months. To the delight of many, Pandora was on the list -- and to top it all off, the music streaming service would come ad-free for the first year. The question then shifted to when it would actually make it to the Windows Phone Store, and we finally have an answer: today. The free app will take advantage of a Live Tile in all three p