This is the 3rd "low cost" Linux board to "come out" in the last year or two (Chip and RPI Zero) but none of them are available on the market.

All of these projects have endless streams of explanations why the product isn't available yet: "it's a Kickstarter", "supply chain", blah blah blah.

I don't think it's a coincidence that there are 5 or 6 Linux boards in the $40 range and zero available for purchase in the $10 range.