If it's bad enough that you need to bring your own model, (a) Apple is toast, because this is, to some extent, the future; (b) you're hosed, because you can't o

If it's bad enough that you need to bring your own model, (a) Apple is toast, because this is, to some extent, the future; (b) you're hosed, because you can't optimize for battery life as well as Apple can.