Hey, sorry I can't be more help. I haven't read the terms in detail. The whole idea is that they are selling an ERC-20 "EOS" token on the Ethereum network, which is effectively just a placeholder. The distribution of those tokens will then be used to distribute the actual EOS tokens on the EOS network. That's why it is important to register your public key, because you will use a private key on the EOS network to claim the real EOS tokens. The placeholder tokens are basically useless, and trading will be frozen once the full ICO ends, so that the final state of token distributions on Ethereum can be used as a snapshot to generate the distribution of real tokens.