The villages worry me a lot. I am really concerned about the impact that friendly NPCs and pre-built modern structures will have on the games mood. The ruins are truly wonderful and will add to the mystery, the villages risk breaking that magic of being alone in a beautiful, lonely, hostile world that is yours for the taking. I'm struggling to explain my point, but I hope that I'm not alone in thinking this.
I trust Notch knows what he's doing but it'd be a shame to lose the atmosphere that made minecraft so special to me in the first place.
hm........do you guys think that the npc houses are maybe basically dungeons with npc mob spawners? mossy cobblestone as the base......and that way if you attack they would keep on coming until u found a way to either destroy the spawner or negate it.