There is a very good reason iPads (and SONY readers, cell phones, DVD players, television and all these new ways of viewing them) will kill movies. It's because our brains test the reality of what we are perceiving if and only if we can act on it. Since, in a theater, we can't change what we're watching, we don't test its reality. We believe in Iron Man or Spider-Man or Superman. We escape. We are "transported." But watching a movie on an iPad?