New Xbox Live Service Being Developed?

A job offering for a program manager on Microsoft’s US careers website is fueling speculations that a new Xbox Live might be in the works, "We’re building the games, the console interface and logic, and the server support for a totally new Live experience. Both the games and the dashboard experience will be deeply paired with dynamic server support to create a compelling, fresh scenario each time. We are looking for a passionate games producer to help implement our first generation games that will run in this new environment."