Yup those human readable account names make EVERYTHING easier. ALSO there will be more than just steem-engine.com , we will have many front ends and maybe we can have @esteem-app @good-karma build Trading and steem engine tokens into their desktop wallet. we can and will have many desktop and mobiel wallets
@steempeak and its dev @asgarth will probz be closest to allowing market orders on their front end , or maybe at least staking and unstaking buttons :D