they launched pre-nostr. I briefly discussed Nostr with nostr:npub1ylepraz59lvf6eeultg4kmvr3nza2ftpt2hgd90drh8tcwdjmtdss8xgy8 in Miami last year.
Hopefully some day they'll feel the inevitable nostr gravitational field; they are really good at product and sales and had experimented a bit with nostr, but not nearly enough; there's such a huge opportunity to unlock value in this intersection!