I must admit, I was caught off gaurd up untill the moment Lex said, 'Are you sure?'...as far as the kid goes. Then again, I stayed away from all spoilers and didn't even know there was a kid in it..
The new Lois.. I must admit, I'm not sure what to make of her either...She's not bad...but nothing rememerable..
As far as what this movie could have been...Keep in mind it was a MUCH worse script years ago, and thankfully it came out as good as it did. Supermans Outfit giving him powers instead of the sun? Th ankfully WB got rid of the guy who came up with that idea. I beleive this movie was just a re-introduction to the franchise, wich is why it was so simple and basic. Part 2 should hopefully be more interesting...
I think it would be kind of fun if Lois somehow got Supermans powers for a while and had to learn how to deal with them for the short term

...For instance, Lois and supes get married...Lois is complaining about Supers greater responsability and wishes he could spend more nights at home. She gets his powers, tries to live a normal life with them, finds out it is impossible... Doomsday is introduced...She tries to stop him, falls flat on her face in her inexperience, gives Supes back his powers... and boom.. instant movie

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