Fob profiles would be nice I guess. But that seems like an archaic way of doing it. I have key / fob profiles on a few vehicles. With our Explorer, we can configure and set the profile in the vehicle and it knows which one is in the driver's seat -- or enters on the drivers' side. But it detects if multiple are in the car and if multiple are detected, it displays them on the screen in case we want to choose a different one than the one it thinks the driver has. I prefer just having the profiles available from the big screen in the car with the option of locking out certain profiles with a key code or other security feature.
I agree with pretty much everything else in the original post. I don't have my X yet, but with the little bit of time I spent with an X, I have to say the biggest missing features for me are: Video rear-view mirror, and HUD. Next up would be the ability to recline the second row seats. My kids both complained that the second row doesn't recline as they do in our other SUV's we've had. Sure, they tip a bit, but it's not the same. I personally don't need them to fold, it's so very rare that I ever fold 2nd row seats, but perhaps that's because I have other ways of hauling bigger things -- pickup truck. I do wish that a folding second row was an option. I'm not a fan of removable seats, they just tend to get in the way and it never fails that you're out somewhere and don't have a place to put the seat when you need it out of the way. Or you need the seat and it's across town in your garage. I see where and why people suggest them. I think a lot of people want the X to be a cargo van.
Blind spot warnings on the mirrors would be nice. My Fords have that...