It is simple, all the currencies iwll be converted to bitcoin, and we will divide the total amount of bitcoins by the total supply of the token (15M) and then we will send to each participant and amount of tokens proportional to its participation.
This really cleared things up for me. If you give any altcoin it will be exchanged to bitcoins after the ICO is complete and from there your stake will be divided. Perfect, thanks. So if you want to play it safe, invest in bitcoins. If you think some altcoin will do well this week invest in that!