We are very early. Id assume for bridging? Aka creating relays between BitChat and Nostr? This could allow BitChat messages to be transmitted and interconnected with users in other geographical areas, even if they're not within Bluetooth range. So basically Nostr could act as a bridge to expand BitChat's reach, only when your connected to the internet. But don't take my word for it. I'm just assuming. We really don't quite know yet.