Glad I read this thread, my old Acura CL-S had this feature and it was great. I always keep my mirror adjustment set to nuetral - just from habit of other cars, you can "bump" the control and screw up your mirror settings.
I'll set the switch on my 06 S to the passenger mirror and see if it works with my manual seat version.
BTW, do you guys know how much those power adjustable seats weigh?