Right now I would say I am 50/50 on them being real. I don't believe that the hashlet thing is an outright scam. Its possible that the reason the preorders/sales of the vaultbreakers was stopped is because they are using those for the hashlets. I highly doubt that all of the hashlets that have been sold actually exist as hardware. My bet is that he is using the sale of "fictitious" miners to fund the design/production of the real thing. The problem with this if I am correct is that if anything happens to delay this it could collapse.