Maps
2 kinds of electronic maps -
Raster - like a photo of a paper map ... they don't change the data as you zoom in and out. Like your UK OS maps.
Vector maps. The data can change as you zoom in and out. As you zoom in more data becomes visible so the blank spaces are occupied. Zoom out and data is removed so the screen is not too crowed.
Few programs/devices handle both kinds of maps.
Oziexplorer only does raster maps.
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Any map (electronic/paper) will not have all the data, some will contain errors. Most are set up for one kind of use.
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Most of the present mapping uses are for paved roads. Some are set up for bicycles, pedestrians. Very few are set up for 4x4 use. Tracks for Africa/Australia are 2 I know of .. and those are for Garmin use...
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I'd start you out with OSM (free vector map- available for all the world) ... for ipad .. mapout application maybe good. The 4x4 tracks only show up when zoomed in. And not all of them will be shown. And probably some of them may be private. But it is a start. And the price is right. And it works 'off line'.
Lots of reading on http://www.horizonsunlimited.com/hub...armin-et-63191
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