Sorry to give you bad news but the web are overthinking about this twitter.
"Sorry no intent to tease. I promised we'd let our architects speak about our system, and we should have something to share soon. Don't expect a bomb, but it should explain in depth our architecture and how the paper specs don't tell the full story. Again, I just spent time at TGS looking at both platforms - after E3, Gamescom, and PAX and I still insist our games look awesome."
http://www.reddit.com/r/xboxone/comments/1msxoy/according_to_albert_penello_more_xbox_one/