You will have your own token? Or will use EOS?
They will have two token. One for trading as erc20 token. The other one is in eos for in chain solutions and it is eos based.
You can see the details in their whitepaper.
Why they will have 2 types of tokens? And which type will be selling on ICO and which one will have liquidity? I Understand that EOS have too many bugs, but why jost not create only ERC token?
erc20 tokens were chosen for the liquidity due to the number of wallet holders available on ethereum. EOS doesnt have too many bugs. Loads of issues were ironed out over a few months ago and bear in mind bitshares and steemit have been running successfully on an older version of eos since august 2016.