Yeah, I read that so I was quite surprised that those state of the art units are entirely out of stock too. It is clearly quite a lot worse than that blog post says. I was ready to buy a 3B+, 4B, Zero, anything compatible with their camera, but every single option (including a 4 compute board plus an I/O breakout) wasn't in stock.

If you run into a more recent update I'd be curious to hear, it's only been two months so I'm surprised that the situation on the ground seems to have changed so much without comment.