I think you guys are being a bit harsh on the "whiners". There's a few hundred people that ordered their MS 2 months ago that missed the "goodies". Its the pitfall of not doing the traditional model year thing. Traditional dealership model, you'd get a chance to hold off buying the current model year until end of the year for next model year. For that, you pay the price of not getting year end clearance discounts.
In this case, had those people knew of the significant advancements of say, model s 1.5 or 2.0, a lot of them would probably hold off on the purchase. Of course, Tesla would then be forced to reduce price to "move" the 2014 cars while 2015 cars are sold at full price.
This is not an early adopter phenomenon. This is the direct result of not using the traditional model year system. At some point, Tesla adds upgrades/options (as we saw with parking sensors, etc), and you deal with that. But since we order our cars MONTHS ahead of time, not knowing what and when new hardware/improvements are coming, Tesla is going to piss off a few hundred people each time this happens. We'll see this again on the next significant change, like bigger batteries, better motors, or whatever the MS owners are currently envying about.
It all comes down to communication. And isn't any. And there isn't any because of the system of sales Tesla decided upon. Lets not be harsh on those who missed the boat by ordering a month or two too early. They sorta got screwed on this one. As for the owners that had their S from a year ago, well, that's just tough luck.
Elon mentioned AWD months and months ago, he just never said when. He also mentioned autopilot. He also mentioned a 500 mile pack too. So I'm sure that's in the near pipeline.