There was a very interesting post awhile back on the other AF447 thread in R&N. Take a look at it, would like your thoughts. You can find it at: Post #1222, Pg.62 by The Shadow.
For those interested, The Shadow's post is on pg 61, #1218 R&N thread. We have discussed similar issues on the Tech Log threads, although not in such a concentrated manner.
It is pretty obvious that no one on the AF447 flight deck saw the trim indication in time. If they had, there should have been an understanding of what the problem was.