There's a bit of sleight of hand on their Thunderbolt Display page [1]. The first image is of a MacBook Air hooked up to one of the new displays, but when they talk about "The ultimate docking station" they show a MacBook Pro.
This is because the Thunderbolt and power ports are next to one another on the MBP, but on the Air they're on different sides of the machine, which is going to make it a lot less elegant.