It's been pointed out on Talking Dead (and on the show actually) that zombies go into a "hibernation" mode... Once there's a certain time of inactivity for them, they just basically go to sleep...
And they are starving, though very, very slowly.
I think the dogs were something of foreshadowing of future threats... Animals would almost inevitably become a problem.
Anyway, I think the episode was great... My favorite part was really the bonding between Carl and Rick... Some badassery there. Though I think the only reason they hadn't gotten to that point yet was they didn't want to use the ammo up... Carl chucking a new magazine to his old man though, that's some classic stuff. Carl's one of the best in the camp at this point.
I liked the ending... I think that solidified who was luring walkers to the fence.
I didn't mind Talking Dead, and frankly I think Hardwick's a great comic... His show on CC now is pretty great, and he had a stand-up special this past year that spoke to the nerd community. I think last week's TD was better than this week, but for some reason this week just didn't have as much to talk about. I thought the guests were pretty decent again though, but this really was just an episode there wasn't as much to chit chat about. Sometimes the hour isn't enough, especially when writers or producers are on talking about the things in the show that are either only vaguely implied or not really spoken of at all but which are intended (like the zombies starving, for instance).
I'd like a count of how much fodder is left in the prison at this point... No clue how many people are still there.
And I agree, I thought Glenn was going out vomiting on the floor. Glad he got bailed out there, but really they played up the tension well this episode I thought.
And I agree again, I think the Governor's going to be pretty much all of next week's episode with very little of the group.

Might be interesting I guess, to see his perspective of the time elapsed here.