Walter's feelings for Daniels...

There are deleted scenes on the bluray that focus on Walter/Daniels, and I think someone from a test screening mentioned a conversation where Daniels points out to Walter how they're the only two crew members that are alone. To me it sounds an awful lot like the deleted toast/creation myth scene in Prometheus (it makes the very same point about David/Shaw being alone, & Ridley said well before the rewrite that isolating David/Shaw was "essential" to what he wanted to say about humans & AI). At the very least, I find it interesting that the "lonely girl meets lonely robot" theme survived the rewrite process, much less made it all the way to being filmed if it wasn't important (it's one reason I consider AC a reboot and 100 credits says Walter/Daniels will be back for the sequel)

It may seem that way from the Novel...

But i think they went for the differences in the Movie to show how David is different to Walter and that Walter Models do not have the Emotional Ability or Understandings of the earlier models. So Walter is a Straight up Robot who does not have these feelings.

Its to kind of show us the differences like in Star Trek TNG with Data and Lore

I want to preface this by saying I haven't read any of the tie in content of A:C, so strictly going off the movie and how I interpret it.

I don't think Walter has any concept of love, and David seems to have a very skewed understanding of it.

Even though Walter says he doesn't have emotions, he probably has some. Maybe Daniel's death will trigger a sort of, say, awakening ;)

I liked how the novel flirted with Walter developing feelings for Daniels

I felt in the film that Walter and Daniels had some connection but that's how I interpreted it. The deleted/extended scenes seem to expand on it better. 

Walter seems to be the perfect guy for Daniels after her husband died.  He has a way with words and timing, but he is very technical about it.  It is kind of humorous, like a nerd trying to be romantic (and is succeeding at it!).  Still, I don't think Walter loves Daniels or even likes her in a similar way.  She is just available and is grieving, so she could use the friendly company.  If her husband was still alive, Walter wouldn't appear that he loves her.  The movie and more in the novel do play with that idea and I like it.  Still, Walter is programmed to act the way he does.  If the Walter we know started having feelings for Daniels, then I say there is a defect in all Walter models (and I doubt that is true).  Now, if Walter started having feelings for Daniels after his lessons with David, than maybe I could believe that David started to make him more aware than he was programmed out to be.  I think David is more aware of things in life then he was programmed to be.  Still, right from the beginning of the book (and possibly movie.  It's been awhile since I've seen it), Walter seems like he is charming Daniels. 

@BigDave But i think they went for the differences in the Movie to show how David is different to Walter and that Walter Models do not have the Emotional Ability or Understandings of the earlier models. So Walter is a Straight up Robot who does not have these feelings.

Its to kind of show us the differences like in Star Trek TNG with Data and Lore

Ah, but Data did acquire feelings eventually, and even though he didn't have human emotions throughout most of the series, he could still feel in an android way. He explains it to Deanna once that when someone he knows dies, his brain misses the loss of the familiar connections it makes when previously interacting with that person. In effect, he is used to them, as we become used to our friends and family.

Perhaps Walter is a more evolved version of that... As much as he doesn't have David's emotional scale, who is to say he can't learn? He may never love as a human does, but then, he's not human. So, maybe he's not supposed to... He's supposed to love in his own way.

Even if he did have or later developed romantic feelings it would be an unsatisfying relationship for Daniels. I assume she is a sexual person and I doubt Walter has proper equipment, and even if he did, it and him would not work like a human man. I feel as if something would always be off, seem like taking advantage of one meant to serve. I do think Daniels had developed a tender feeling for him though, the extent of which unknown. 

Speaking of romantic relationships...if those big, strong, handsome engineers show up again...hmmm.

A major theme in the Bible is that, no matter how much you perfect things [God making this perfect paradise for man], what you intended to exclude always finds a way in [Serpent, temptation, etc.]. 

@Lawrence of Arabia

I agree. The AI-problem (the possibility of feelings/a soul/free will etc) is more developed in Foster’s novelization of AC. David and Walter discuss this, and David claims that he loved Shaw (but did he really?). Walter says it’s impossible (He saved Daniels only because he is programmed to it - duty).

But as you point out, Lawrence of Arabia, Walter ponders over the possibility that he might actually feel something (love?) for Daniels (as he watches her sleep), and he (feels?) embarrassed when she strokes his cheek (expressing that she appreciate his kindness and loyalty).

Also, the discussion between Walter and David concerning playing the flute is more developed in the novel. Walter says he cannot create music, he isn’t free in that aspect, but David says he can. And he can . . .

The differences between David and Walter was one of the things that were good about AC although I think that David was written as being a bit too human. I think that it is good that they made Walter a bit more android-like.

I think that they should have focused a bit more on the interaction between Daniels and Walter because then we should have been shown a bit more about Daniels, something that I think was missing in AC. She wasn’t bad but she should have been written better.

Walter definitely has feelings for Daniels, the novel makes it more clear. I too felt bad about how things ultimately turned out.

...Would you like to feel even worse about it?

Walter is somewhat to blame for Daniels' ultimate predicament.

When David is attacking Daniels, Walter reacts emotionally because of his feelings for her. Had he not, he could have legitimately rescued her.

Walter knows that, like him, David has a control inside his neck that, if depressed, would have deactivate him (and David wouldn't have been able to recover the way Walter did).

If only Walter had paused to take stock for a moment -- he could have located a sharp object, (or even used his own finger, as David did in the book) and jabbed it into David's neck, summarily defeating him. 

Walter has a similarly light step and could have snuck up on David (and in fact, he did sneak up on him, but threw him off of Daniels instead of stabbing him).

Since they are otherwise evenly matched, apart from Walter missing a hand, there was no possibility of Walter winning the fight. The only thing he had in his favor was the element of surprise, which he wasted.

David's little monologue made it clear that he had no intention of immediately killing Daniels.

If Walter had not acted with such unnecessary urgency and emotionality, Daniels would not have wound up at David's mercy with him in control of the Covenant.

But, now that Walter is stranded on Planet 4, he has plenty of time to reflect on his actions, inaction and the repercussions there of. He has my sympathies.

Nicely put VivisectedEngineer & Seph7 :-)

I concur I Moon Girl, Walter is very charming in a nerdy way and I also felt he was perfect for Daniels. 

Walter reminds me very much of Data. I was instantly smitten when I saw AC for the first time. I think there's plenty of capability there for him to develop and learn over time. I also believe that the Walter model he is, likely incorporates all variants due to the nature of his mission. He's never going to be returning to earth, so it makes sense to make him as complete as possible, so as to better serve the crew and colonists.