Are you saying that Fallout 3 is not a Post-Apocalyptic Role-Playing Game?
Nah. Just messing with you. Didn't really understand your comment either, and was hoping I could draw you out.
I actually liked Choose-Your-Own adventure books. And if you're saying Fallout 1 is old-fashioned, less "actiony," then so be it. But at least it presented you with choices and was a good RPG. Which was why I bought it in the first place.
Fallout 3, was too linear for my taste. Characters lacked personality and the stories were too simplistic. But NOT because of the shift from turn-based to shooter. I don't even mind that. In fact, I liked Fallout 3 a lot, but my only beef with it was the poor writing and simplified character development system. Which I'm most critical about when it comes to RPGs. Is Fallout 3 an RPG? Yes, but a very simple one. They seemed to focus more on graphics and effects than the actual story and character development (SPECIAL). Hence "pop-up." I enjoy it as an FPS, but not as an RPG.
As Bockscar said, I don't believe that you can't have a good shooter RPG. System Shock 2 was one. Mass Effect was one. Half-Life, almost felt like one. But only because the characters and stories were compelling.
EDIT: @Aqualamb
I think what he was saying (and if not, just pretend it's me saying it) is that it is an RPG that promised many shades of grey, many ways to solve quests and real consequences for your actions. All things that are by and large missing from Fallout 3.
Yes, that's exactly what I was saying.