road angel 7000
I use memory map on a road angel GPS - 3.5 inch screen, cost about £170 from Argos plus the memory map 1:500 000 chart at £20. The screen is about the same size as a Garmin *96 and the map looks exactly the same as the map on my knee. At the moment I mostly use it as a "finger on the map" but you can draw track lines etc on it - and the extended position line is very useful.
BTW I've not played with "flight safe" mode - but if I leave it on my N95 plays hell with my Bose headset.
Dave