In my 06 sports/luxary model, it's either key or remote. For me, driver one. I have it set up for remote. So my remote will set my seat, mirrors, radio and climate control. Then for my girl, driver two. I have it set up for the key. As soon as she inserts the key the seat moves to her posiston as well as everything else. This is wheather my remote or her remote was used.
As for memory recall. What is kept in memory from when you press and hold are seat and mirror posistion. As for the climate control and radio, they are kept in memory by their last usage. Which is good because you don't want to keep on changing the temp of the climate control everytime you get in the car.
KOT