Or....
If you have something like Telenav, it downloads real-time maps by cellular
datalink, and you have the most current info about construction and
roadwork, closed streets, etc., because it is real-time live download.
That's what I like about having it on my phone. And I understand that some
of the subscription mapping devices also download in that manner.
----- Original Message -----
From: "Eric S. Sande" <[EMAIL PROTECTED]>
No, not a religion and politics question. A mapping GPS comes with a
base map out of the box. Usually pretty basic (yeah). You can buy
maps to download to the device depending on what coverage you want.
These can have a very high level of detail, depending. You can get, for
example, USA maps or European maps, etc. These can be very helpful
(or not, as the case may be).
It depends on how frequently they are revised.
A non-mapping GPS will normally give you a base map that is very
simplified. You can set waypoints and you get position information
but they do not have routing capability.
A mapping GPS will have routing capability. The device will attempt
to figure out, based on its map database, where you should go to get
to a waypoint. Sometimes this works well.
Sometimes it doesn't. Topo and basic road maps are somewhat
dependable. Elaborate maps sometimes aren't.
What is generally said in bicycle touring circles is that GPS is a nice
thing to have but maps and compasses don't need batteries.
I wouldn't bet my life on a GPS device. It's nice to have in certain
circumstances. A friend of mine was lost in the Atacama desert on
a motorcycle trip to South America. He had a (non-mapping) GPS.
He said, and I quote, "I was lost, but I knew exactly where I was, I
just didn't have a map."
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