They want to leverage the technology and features of Skype, of which it acquired in May 2011. Sony made Skype available for PS Vita. There'll be no new Xbox at E3.
Microsoft has clipped the mighty wings of hope for an unveiling of a new Xbox platform early next month at E3, but at least we know it'll act as a sort of phone if we need it to.
Job ads for Skype and Xbox aren't anything new and obviously Kinect will be utilised given its video and audio capturing features. Maybe we'll get to chat with others over Xbox Live as our avatars? A little creepy, but cool.