Update: Xbox Live's Major Nelson has posted the following official Microsoft statement regarding Orth's comments:
"We apologize for the inappropriate comments made by an employee on Twitter yesterday. This person is not a spokesperson for Microsoft, and his personal views do not reflect the customer centric approach we take to our products or how we would communicate directly with our loyal consumers. We are very sorry if this offended anyone, however we have not made any announcements about our product roadmap, and have no further comment on this matter."
Well, here you have it. This all rumour train (anti-used, always-on, blabla) is going crazy. Calm down for God's sakes, people.