And yes I get that it's open source blah blah blah, but this project is certainly part of the plan for an institutionally-funded business to make money. Adapteva is a .com, not a .org.
Separately: if Adapteva is only 8 months from delivering completed product to users, shouldn't they be able to raise more funds through traditional channels? They clearly have/had VC buy-in and can raise through institutional channels. If they are just finishing the final debugging/SDKs/etc. at this point, it's not a good sign that they can't raise another $750k from their existing backers to cover final launch costs.
I don't have a horse in this race, but it doesn't feel quite right to me.