
What this means is that you can play games with Xbox 360 and Windows Phone users directly from your Windows 8 computers. This will be available as Microsoft is developing async multi-player into the Windows platform.
This will essentially allow you to play a game like Angry Birds on your smartphone, PC and even your Xbox console. The scores will be on your online Xbox profile and you can compete against your friends and family with the Live features.
With Xbox live availability in 35 countries around the world, with around 35 million subscribers you have a fan base which can only grow when introduced to the large Windows following along with Windows Phone.