Yes, like you Bob, maps have a certain 'old school' appeal and a lot more specific detail to boot ! Admittedly, that's maybe not of prime importance during riding when you only really need the basic, clear road directions. RIDE magazine recently also reviewed SatNavs for bikes and Garmin appeared to come out tops. Yes, the BMW satnav is just a re-badged Garmin unit. Very nice I'm sure, but one hell of a price.
I'm currently stuck trying to decide which one is better overall, TomTom or Garmin for bike use. Needless to say, I'm taking on board all other members opinions/views…!!