There is still a fair bit of"lugged" carbon being done. Most of the time it's tube-to-tibe wrap, but that's essentially creating a lug. Parlee and Calfee use carbon lugs, as well as many other builders. Granted, the bikes aren't being built in the traditional lugged sense. Usually the lugs are a separate mold that fits over the tube. The inside of the mold is layed up before paying the lug over the tube and then the bike is cured. You can create a custom monocoque this way. It's much easier to make up molds for custom lugs than it is to tool up a mold for a whole frame.