I think Kimīs solution is much cooler

Yep, *and* open.

Note that the map formats they use for this HandyGPS are not compatible with any other one. Only the US is available in their own format.
Nor can you download data 'due to different data format' and it is totally dependable on the HandspringVisor
Nice idea though . . . .

(see their FAQ page)

Henno
mk2 nr 6
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Henno mk2 [orange]6 [/orange]nr 6