I'm getting used to the thought of a 50%ish morale is normal. But could there be a button where you could 'ask' your people what they want? (i.e. We are mad, because we don't have entertainment networks! everyone else has them!)
Likewise, when morale gets really low, perhaps the planet could petition me saying 'Build these entertainment networks, or we are siding with the Yor!' or something along the lines of 'WE'RE OVERCROWDED!'. Right now I have to guess.
Speaking of morale... when I dump a million colonists into a colony ship, shouldn't the morale take a turn or two to stabalize? Going from 50% to 100% just seems rather strange... If population was that big of a deal, I would ask that I have some technology or laws I could implement that would curb the population (birth control, liscenses to allow birth, etc).
Which makes me think of something else. It would be neat to have laws you could impose on your own civ, like the UP. Laws that could make people happy/productive/etc. Like colonization events, some laws can be evil/good.
Some laws could be such that it increases the defense against culture attack (i.e. a law that says 'NO ALIENS ON OUR SOIL!') This could limit trade, perhaps make you leave the UP, etc..