Welp, I *hope* this boards are simple enough even I cannot screw it up(tm) because the order is in place.
I've ordered 18 boards and will bring parts for 10 or so, will know sometime next week what I can swing.
I'm interested in hearing ideas for uses. Obvious one for me is using the BLE Serial Port Profile for badge to badge communication. Unfortunately it doesn't appear any of the WiFi Mesh functionality has been implemented in the AT firmware. But in Station Mode a fairly trivial service could be written for multi-badge comms. Let me know what you'd use one for.