Is Shaw an android? Deckard twist?

Hi all, first post, love the site, I have been giving this a lot of thought, is Shaw an android, or not totally human? Bear with me on this. I know a lot of people think Vickers is an android, and the leaked script seems to point to this. I just think that there are a lot of twists and turns to the plot that we have not seen yet. For one, why do we see Prometheus crash into the derelict? Is this not a massive spoiler? I think that crashing Prometheus into the derelict is not the end of the movie at all and there are bigger things to come after this. Otherwise, isn't it like showing us how the film concludes? I like the idea of Shaw being an android, or not totally human as she has been presented as a character with strong religious beliefs. It also addresses the question of what it means to be alive, which fits Sir Ridley's "I come from the all-about-everything school?" I love the corps!