this coin mineable? 
the project is about a decentralized exchange not a coin in the traditional form ... so, unfortunately no the mining process here will be a bit different than the traditional one ... the white paper will explain that in details
I have read the draft and I'm quite impressed. I think the exchange could be created without the SPHXED coin - what is its purpose? Is it going to have value in the future, or is it just side product of your blockchain?
SPXED, or most probably it will be called that, is yes when I first set off on the project it was mainly a by-product of creating the blockchain, but as I started working more into the code I realized that it could be of more use ... I doubt that it have any tradeable value, or at least that is now what I have in mind ... but then again, this is crypto, and things could gain traction and be used in many other ways that they were not originally meant to be
))Are there any trading fees?
Yes ... its 0.1%
