It seems to me they are "borrowing" from the robotech series a bit.
The settlement is a low grade version of Macross city growing around the crash site of the super fortress. (president's ship and other craft)
The 1/2 human/cylon is a duplicate of the dana character who was 1/2 human/zentrati (other "grown" beings)
I am just waiting for the "protoculture" line. They had an initial AHHH moment with a direction to earth and just abandoned the plot line in order to go into moral relativism and hand wringing (and nobody noticed a MISSING NUKE?!)
That said, can't wait for the next season....