Meh, I liked the kiss, since I think they really did play it well as more of an adrenaline rush thing, which honestly suited the characters better than a hackneyed romance like Rachel Dawes in Batman Begins or even the original films. I've just never been a big fan of any two faced romance between the two. Of course I'm probably as close as you can get to a full on Anti-Silver Age tropes partisan as you can get. I hate Super-dickery, I hate the love triangle, I hate the super klutz, and I want my conflicts to be serious instead of silly. I read Superman more for Sci-Fi action than fantastic adventures.
Plus I figure they can milk three things for the disguise: he's clearly mild mannered when not in costume and gives off a shy and humble attitude that contrasts with his time in costume, he could easily play the resemblance card, and he is about to meet Batman who could easily end the film faking a concurrent appearance in different parts of the city for his new friend.