I've finished the Scarf in Mirasol's Sulka, the fairtraded merino/ alpaca/ silk. Sylvester thinks he should have it but it's going to be a Christmas present for someone else. I did something stupid when I was making the slit, so I had lots of ends to weave in, but they're done now and I'm happy with it.
This is beautiful stuff to knit with, and more robust than it looks. John Lewis seem to be the only stockist in the U.K. so far.