I'm seeing a coinbase transaction right now and it doesn't look like there's any zerocoin-related stuff. A regular address, a regular coinbase tx and so on.
There's also  a couple of rpc commands one for minting another one for sending zerocoins, apparently without any parameters  
My guess is this is a useless work-in-progress at best. It's just a regular coin with the theoretical possibility of turning regular coins into "zerocoins" and having both types of tx on the chain. That's a best case scenario, unless the dev has anything to say or prove ...