I wouldn't hold your breath on it being addressed by Pioneer. This is a usability issue/feature, and I haven't known Pioneer to address anything but outright bugs in their free updates. They, of course, have sold updates with new features and usability improvements, but even then, I get the feeling that if it wasn't for the development of the next model, they wouldn't have bothered offering anything new to existing customers.
So maybe, if there's an F901BT next year, Pioneer might sell us a new set of maps along with a few new features (like user-up orientation).
Not that this is surpr