Its available as of Friday. Got an invite to call for one of the first 100 on Friday, from Jon at HMH, but I won't be ordering one. The price isn't stellar compared to say the Renzetti Master, but I lack the skill to use a rotary vise, even an attractive one like the HMH. I'm afraid I'm rooted in the past and while I love my HMH Standard and had a storage box/tying station built around it, I've got a rotary and do not use it much.
I'd love to see a review of this vise although I'm not in the market for one.