Yes. There's some info here https://cacm.acm.org/magazines/2020/3/243028-the-bbc-microbit-from-the-u-k-to-the-world/fulltext#body-6 https://cacm.acm.org/magazi

Yes. There's some info here https://cacm.acm.org/magazines/2020/3/243028-the-bbc-microbit-from-the-u-k-to-the-world/fulltext#body-6 https://cacm.acm.org/magazines/2020/3/243028-the-bbc-microbi... The total shipped number is now 5 million units. A significant part of these devices are in weekly use. Disclaimer: I'm one of the authors of that article.