How soon after ICO end tokens will be available for trading on some exchanges?
very quickly ,if you want to hit etherdelta . but if want to hit major market ,i think should need time
ED has a very unfrienldy user interface though. I heard stories people lost so much money on that exchange. I used it as well to buy certain tokens I really wanted to get. But I prefer to stay away from it, there are better decentralised exchanges out there and I really don't get why they don't improve Ether delta's UX.