[jack12]

Only after you've agreed to it does it popup the text "This development board can be only used for prototyping, it cannot be built into a product for commercial distribution. It cannot be re-sold or used as part of a production environment."

I suspect adding anything about restrictions was a last-minute job for Seeed, and it's probably not something given too much effort on their part. Realistically, an $85 devboard isn't going to end up being built into production items. And they're probably going to be a low enough quantity item for Seeed that they can manually look into any instances where someone has ordered more than 3 or 4 and just stop sending any more to them if it really rises up to being enough of a problem for Microsoft to complain.