Question: To be clear, I'm not talking about the EOS erc20 token, I'm talking about the coin post-launch. I haven't heard mention of any wallets, 3rd party or otherwise that will be ready on launch day. Are there any?

Answer: 
This answer probably will change over time, but you should be able to find a list of wallets on:

<https://eosprojects.org/categories/wallet/>

Currently listed are:

* <http://scatter-eos.com/>
* <https://play.google.com/store/apps/details?id=io.mithrilcoin.eoscommander>
* <https://github.com/PearlWallet/Pearl>

// disclaimer: I am creator of eosprojects
Among other things EOS.CYBEX claims they will launch the world's first hardware cold wallet for EOS. 
They state on their home page, [linked](https://eos.cybex.io/), that "transactions happening on EOS are rather big in data volume, which will translate into a problem in embedded devices like hardware wallet, for the length of signature accounts hugely for hardware storage capacity." 
So I am guessing hardware wallets like the Trezor and Nano S may have difficulty implementing EOS.