The Zipp 440 came in the mail today, pretty cool looking. Feels light, Dura Ace hub. 990 grams w/o the skewer (and with the tire). Compare that to my training front wheel (Mavic Open Pro with Ultegra hub, clinchers with tire liners) which weigh 1300 grams, thats a pretty big drop (almost a pound off the front wheel alone). Plus the 440 is aero.
Some more pics:
The frame should be here by wednesday, the rear wheel who knows?