I just happened into the Mathmos USA site today and noticed they are taking orders for the Telstar Rocket lamps and estimated to start shipping August 15th.
Color changing lamps are on the site too, but no price shown yet.
The globe of a astrobaby / telstar is about 32oz but I am not entirly sure. the size of the astrobay globe and a LL 32oz is compleatly diffrent.
The astro globe is about the same size as a LL 52oz