Quote HarryMann,
"Now you've made me wonder how just those bodies found (and maybe many more) exited the fuselage... if it didn't break up?"
Just a personal opinion, but one that fits with the debris found and other apparent circumstances as published by BEA, the fuselage must have broken on impact, probably both in front of and behind the wing. The exact pattern of breakup would depend upon pitch attitude, whether slightly nose down or slightly nose up.
Even if perfectly flat, the wing should help decelerate the area above the wing more rapidly than those areas just behind and just ahead of the wing. (Talking about the vertical component of deceleration) This would break the top of the fuselage in those stress areas. But to add another complication, if the aircraft were slightly nose up on touchdown, the bottom of the fuselage would fail in longitudinal tension behind the wing at touchdown, followed by the top of the fuselage in the same general area as the remainder of the fuselage impacted.
The large debris from the interior of the aircraft found floating guarantees that the fuselage was ruptured at some point in the impact sequence.
I would expect some fairly large chunks of aircraft and an extensive debris field primarily consisting of small parts and interior components. The impact energy does not appear to have been high enough to thoroughly fragment the aircraft, but it was certainly sufficient to break the fuselage.
Again, just a personal opinion. Perhaps we will see a scan of the real thing in the not too distant future.