Microsoft just released a video which shows off how achievements on Xbox One will evolve in the near future,making tracking a whole lot easier. https://www.youtube.com/watch?v=I7VIbwGy7vE

Some interesting news for gamers who own multiple systems and share their main Xbox Live account with siblings and friends, or like to boost their gamerscore. It’s entirely possible to earn achievements at the same time when using the Xbox One and Xbox 360 even when using the same network.