Okay, here's some good news and some bad news:
I just got off the phone with Headroom. They're great people, by the way -- I've known them since I bought a Headroom Total Airhead phone amp from them many years ago.
First the bad news: They expect to get 20 -- that's right -- 20, in the first shipment, with more coming in after that. The first shipment may be in as early as next week, or the week after.
Now the good news: All 20 are not yet spoken for in pre-orders. I just pre-ordered and I'm number 13. That means there are still 7 more up for grabs.
After I finished placing my order, I asked if it would be okay to post this on head-fi and was told, "go for it!"
So, if you really, really want to make sure you get on, there are seven or so that will be here in a week or two and you can make sure one has your name on it!