There are some others out there. Mavic has made some carbon clinchers with an alu rim like this, and the HED Jet is another popular example.
However, for this model, they're replacing the carbon with a sealed foam. Funky. I bet it won't be too affordable, unfortunately. And, given the fact that there's a specific angle for the spoke to pass from the hub through the fairing and into the rim, rims like that generally aren't re-laceable to other hubs.