Microsoft is steaming right along with it's half-a-billion dollar marketing campaign for the new Windows Phone. We've seen plugs in television shows highlighting emailing photos, using Bing and other Windows Phone 7 features.

The latest ad from Microsoft shifts the focus to Xbox Live. From touching on the Windows Phone 7 game "Need for Speed: Undercover" to having an Xbox Live Avatar in the male lead, the thirty second spot is all about Xbox.

Thanks goes out to JUST VISITING for tipping us on the video.