Did you catch the two official blog posts before that? There have been three in the last two days. They explain that no, they do not have 400 boards this week. The nubs in question will go onto those 400, which will hopefully arrive next week.
Thanks Gruso - and no, I didn't notice those blog posts. That comes from it only being updated sporadically, I suppose... Anyhoo, good to know.
Craig tweeted yesterday that he was building another 40, from spares or something.
Unlikely mine will be amongst those then, as I'm 400-500. Ah well, back to waiting.
 for a given value of "good".