I ordered the research kit on Kickstarter + an extra shell + BiBoard. With all the included parts, that is enough to build two Bittles, one with a NyBoard brain and the other with a BiBoard brain.
NyBoard Bittle is up and running, no problems there. Works very well.
However, I'm looking forward to getting started with BiBoard. I understand that this still under development, but am happy to poke around and experiment even in this early phase. Is there any place to go to start getting basic info? Perhaps add ESP32 to the Arduino IDE and poke around with that?