The A1 (as seen in Bitmine and LK Dragons and stuff) was an Innosilicon chip. The A2 (Terminators) was Innosilicon's scrypt offering. If I'm understanding right, they're working on an A3 (sha256) and A4 (scrypt) right now.

Last we talked to them, they apparently had sample chips taped out (probably a short batch of engineering samples) but didn't really care to pass any out. They were more interesed in million-dollar customers tossing down on big batches. I don't know why anyone would lay down on a big batch without first getting samples.

Avalon didn't reply to the last couple emails I sent them but I'll try again. Earlier this year I inquired about chips and they said they'd have a new generation out around July (this was at the same time Bitmain told me they'd have a new chip in June). When I got back to them closer to July I was told the target was moved back to September. Being as September starts tomorrow it'd be nice to know if they pulled it off.

Bitmain says if they come up with some extra chips in the next couple weeks they'll let me know.