Sorry for the noob question guys but, do I have to do anything with my bag of EOS sitting on my binance in terms of the switch from ERC20 to EOS? Or can I just leave it there any everything will be fine?
it is never a good idea to store coins on an exchange.
your should transfer you EOS-eth tokens out and place them in a ETH wallet.
you can use:
myetherwallet.com
mycrypto.com
or the browser extension metamask.io
after that you have to register your tokens
https://eos.io/If you hold EOS Tokens in an Ethereum account and fail to register your Ethereum address to your EOS public key, then your EOS Tokens may not be part of a Snapshot (as defined below) a third party may wish to create when the EOS Tokens become fixed and non-transferable on the Ethereum blockchain. In order to be part of such Snapshot, it is important that you generate an EOS public and private key pair (see the “Generate EOS keys” button below) and register your EOS public key with your Ethereum address prior to the EOS Tokens becoming fixed and non-transferable on the Ethereum blockchain which will occur within 23 hours after the end of the final period on June 1, 2018 at 22:59:59 UTC.