The pattern is Flibbertigibbet by Lisa K. Ross. I really enjoyed this pattern-it was much better for my day of traveling than many of the others, as I could actually hold enough of it in my head that I wasn't constantly checking the pattern as I rode on the bus/plane/metro/car, something that I am very grateful for. The cables are pretty, and I like the mix of cables and lace. The scalloped edge at the top was something new for me with socks! I've done lace edging, but normally I'm boring and just do ribbing.
The heel was done with a standard heel flap, but with the slip stitches in the purl rows, rather than the knit rows, which my fingers found way harder to do than they should have been! The decreases after the heel were at the bottom of the sock, in the same way that some of the other TDS socks have been, and that I've been playing with. As far as I can tell, the only downside is that this heel doesn't really want to lay flat on the table, since the line of decreases start somewhere along the heel flap. If I start the decreases right at the edges of the turned heel then the sock will lay flat, but then I either have to make the heel flap precisely the correct length to have the decreases meet in a point (if I want 36 stitches across the bottom of the foot, then I need to pick up exactly 18 stitches along each side of the flap), or do two sets of decreases. The two sets of decreases also looks a bit odd, at least if the second set has more than just a few decreases, as we will see when I post pictures of my current mindless socks. I'm definitely going to continue playing around with decrease placement, and I'm glad to have the various datapoints from the TDS socks.
The yarn I used was Ancient Arts, colorway Reinvent. The fibre content is 49% wool, 35% mohair, 11% nylon, 4% acrylic and 2% silk. It wasn't a particularly stretchy yarn, but it seems to show stitch definition very well. It's also a lighter color in real life.