A programmable FPGA SoM in the tiny microSD form factor

Though it is cool to see a minute FPGA dev board, I don't see the value proposition here. At $45, it is too expensive to use in a product. What is the killer app for this board?

One can get a significantly more powerful Tang Nano 20K [1] kit on Amazon right now for $31 [2].

[1] wiki.sipeed.com/hardware/en/tang/tang-nano-20k/nano-20k.html

[2] https://www.amazon.com/youyeetoo-Sipeed-Development-RISC-V-E...

Depends what the product is - Obviously it's too pricey for what the FPGA is for mass production, but I've seen development boards that cost a several hundred dollars each (or even a few thousand dollars, depending on the size of the FPGA!) used in low-volume stuff (in the defence sector especially).

This is especially the case for large FPGAs because they can be very cheap in quantity, but if you only need one or two dozen, just the chip can be more expensive than the evaluation board, even before the cost of designing and building a custom board!