Like whom, you mean?
Could be bitfury, asicminer, avalon, bitmain, innosilicon, knc, blackarrow or maybe a company that has yet to reveal itself.
Could be.
Given what Spondoolies has put out and given they meet deadlines... are you willing to wait if waiting is the option for a July or August miner from the competition? Will it be as good as a SP30? Hmmm tricky to say the least. Space / density etc have start playing on the operators now. You really have to wonder is worth all the cabling and stack vs a single box? Cooling? Power? Doing things at home is pretty much dead and the game is moving into ever larger and larger operations. I don't see how 100s of small designed rigs can keep paces with these Spondoolies designs space wise.
It is a risk. I agree don't buy pre-orders. Unfortunately I didn't even listen to myself and I jumped on the 2 x SP30s for August that I bought against the rule NEVER DO PRE-ORDERS. Love the Spondoolies team and all but it is a risk. Don't do it unless you know you can afford to lose every penny. That is only safe way to think about it. It is even more of risk to purchase other fabricators given the history.