Airplanes in minecraft?

Notch just posted on his twitter account that he " just flew a plane! Or at least did a loop on his own". 
 We all know notch, and how much of a teaser he is. I think he's hiding something. Maybe planes will be added in 1.8? Or maybe Jeb is implementing the mod? Let's wait and see!




   You can see the tweet here: http://twitter.com/#!/notch/status/100584788972408832