I assume Sweatshop have got a new batch of these in (but don't quote me on that) cos they're advertising them on the home page, and they've knocked a bit off the price, down to £54.40. Here.
So, a mini review now that I've had the chance to wear them for a handful of races. They've become my shoe of choice for road races up to 10k so far. They feel very light and comfy, yet very cushioned. It's for this reason that I still prefer my Saucony Fastwitch for track races, even though they're a smidge heavier, because they feel a little more solid, and flatter in the heel. But for tarmac, the Green Silence have a lovely feel. I think I still tend to pronate and possibly heel strike a bit, so I prefer these over flats and despite the light weight, will try them out for half marathons at least, and possibly the full distance. The other thing about the fit is that the toe-box is fairly roomy so they'd suit someone with wider feet.