I love the look of them too, but they are on the heavy side for the little aero benefit. I heard they are due out late Spring. I would suggest HED Jet FR 40 which are lighter, way more aero, have grease port rear carbon hubs, CX Rays and the wider rim which has been proven to be way better for rolling resistance. Get a pair of the carbon clincher low profile 7900 Dura-Ace wheels for training if you want Shimano hubs. A friend of mine got a good deal on a pair of Jet 60s from echelonsportcycling.