There will need to be some discussions on when the code will be released to open source. When this is a finished product we will have invested 500+ man hours so we will naturally want to get a jump on those that would take an hour to copy it into another coin. I do not know the time frame as i will need to discuss with cinnidev.
From the sounds of it, its clear that it will be released as open source, but maybe the source won't be released immediately, so that cinni can bank on it for a while before others jump on the bus...
Yes, this is a double edged sword.
I do agree, that open sourced code would not give the original autors the glory what they deserve, but i would still want to have a look at the code before i can completely trust the coin.
Its a complicated issue and theres no perfect solution for that.
I'd suggest you to do the same as ryonmster wrote. Go with the open sourced code, but do not release it immediately after launch.