What's going to be the maximum number of tokens that can be created during the crowdsale campaign?
And 10 STA/ETH is this price already fixed or can be changed?
The number of the STB tokens will depend on the number of the ETH transferred (subject to the bonuses). The max supply is effectively unlimited (we have coded the max supply of 100 million tokens into the smartcontract).
The 10 STB = 1 ETH exchange ratio will likely be unchanged, as ETH has been relatively stable for the past several weeks. We may revisit just prior to ICO, if ETH will be worth more than 400 USD or less than 100 USD.