Before even PocketWizard could release their TTL version for Nikon, a new one has come out of China by Pixel Enterprise Limited.
They have them for Nikon and Canon systems, and you can check out the specifications here.
I was in Hong Kong recently and saw this on sale in the shops. It cost about HKD$1100, which is about SGD$200. I was toying with the idea of getting a pair to try out, but in the end, decided not to... so if there is anyone out there who has a set and as tested them and reviewed them... do let me know.