I've talked with Ben about a similar jacket. He's got a lead on some Pertex Quantum 1oz stuff that I'm waiting for the result of.
For those asking about price, it starts out comparable to mainstream down jackets (at full MSRP), and is already a great jacket "stock." Extra options drive the price up, but at that point you're getting a one-of-a-kind, just-for-you piece.
At 7oz of down, most jackets out there will be in the 20+oz range. Even Feathered Friends' jacket is up in there. Rab makes an Infinity (~6oz of down), but it's sewn through the wazoo and I found the fit a bit strange and still weighs ~18oz.
Now consider at 12oz, you can throw out your EB Down Jacket or similar piece with 3oz of down and take this at the same weight.
Rock on Ryan! Love the jacket. Looking forward to a more detailed review soon!