I came across both the Pioneer AVIC F910BT and the AVIC X910BT.
They both look exactly the same, (both the hardware and the
software), but the X910BT seems to be remarkably cheaper than
the F910BT (speaking about eBay).  Who knows if there's a
difference? Note that I'm in The Netherlands, Europe, so perhaps
it's like the X910BT can't be used with the European FM radio
system or something? I know that the X910BT comes with the
USA/Canada maps for the gps, but that can be fixed with loading
the map of Europe (correct me if I'm wrong).