Presuming (and I think it's a safe presumption) that there are some new features in the Model X that are not inherent to the form factor (e.g., around-view cameras, "enhanced" auto-pilot, cameras instead of mirrors), when is it likely that such feature would become available in Model S? I tried searching for this, and I'm wondering if the transition from Roadster to MS was such a different beast that there really is no analog from which to extrapolate. Seriously pondering a Tesla now, and holding off just to see what's in the MX in case it's irresistible, but I'm strongly leaning toward a sedan over a CUV. But I would't want to miss out on some killer tech... I know this is all conjecture, just wondering if more seasoned Tesla-watchers have already hashed this out.