This device has an interesting connector
I think there are 2 markets… those who want to hobby the XIAO and those who want to surface mount on a production board… the question is why not just expose the USB connector tto the outside of the producr… I dont think we have figgured out how best to surface mount solder to the under (pogo) pins on the bottom… I dont think that would be a problem to have Seeed Fusion surface mount a XIAO to a mother/daughter board… i dont know… I dont even know how to use these pins, but i am assuming debug and production software upload…