It looks like 2 a4+ glued together.
Yes, I already said this exactly.
The pic they put on the twitter announcement was from the side and first I didn't see it. When I saw what they actually did...

Probably the same hashing boards?
Yeah, it is most likely pretty much the same hardware inside the A6, than in the A4+ miner.
They can cut costs by putting two A4+ units as a one package, only need to use
one controller.
Yeah, but a controller board has to be really cheap (the cost of producing it I mean). Maybe this is driven by marketing? They can impress with a GH/s announcement? I'm not sure what the hell are they doing