So here’s the current state of things:
Pat’s spec simply referred to as “WalletConnect” (WalletConnect + Paytaca Connector interface) has been implemented in 3 BCH wallets: Cashonize, Zapit and Paytaca.
The protocol is used by multiple dapps: Tapswap, CashTokens Studio, Cash-Ninjas mint with a few more in the works
Jim’s spec called “CashConnect” (WalletConnect + CashRPC) has been merged into mainline Cashonize but the spec is still marked as pre-alpha.
CashConnect is used by the BCH Guru price prediction game and by the CashRPC IDE
And then there is still the custom Paytaca Connect which is used by the bitcats and available as a 2nd option in the CashTokens studio. Paytaca connect was used by the Paytaca browser extension and was pioneering wallet connect functionality on BCH. Now it can be phased out, as Pat’s wallet connect spec is more general than for just browser extensions.