When I used a Prism for this, I had an extra 8MB added to the
motherboard so that there would be more room for maps. But I also did
the same thing Fred did, using a PiTech Memplug to store all the maps I
might need, and then copying them to the Palm memory as needed.

I actually originally bought the Prism for the color maps (using
Mapopolis). It made a big difference.

- Trevor

Fred wrote:
> To answer your questions:
>
> 1. The maps have to be stored in the internal memory of the Visor
> Prism. There's 8MB and that's pretty good for "regional" coverage.
> However, if you've loaded your Prism up with lots of software and
> games, then you may / will have to shuttle maps in and out of the
> internal memory.
> 2. Don't have my Prism in front of me and cannot tell you what
> mapping software is on my Visor, however, maps are not too large. I
> want to say 500K as a maximum and this is the mapping software that
> came with my Magellan Companion module. As this is early GPS
> technology, the streets are just rough representations of streets
> (simple lines) and very limited in POIs (shopping arcades).
>
> The mapping software makers knew the limitations of the Palm and
> broke up most all of the US into States and Counties and then into
> data chunks of 500K max (most smaller) each. So with the mapping
> software I have, you've got to know the counties of the states you
> will be passing through to see your route in a continous trip. Like
> I said 1st gen.
>
> I also have PiTech's Memory modules as an accessory for my Visors. I
> use the module to load up maps of the States and Counties if I take a
> long trip and shuttle them into and out of internal Prism memory as
> necessary.
>
> The included software for my Magellan Companion GPS is all black and
> white. I have not tried other software as maps with color and more
> detail (POI, etc) require more memory.
>
> I have also heard Mapopolis is good however, never bought it before
> they withdrew the software from their site.
>
> I am now eyeing a BT SIRF III chipset antenna and some software for
> my Palm TX.
>
> Good Luck.
>
> Fred in CT......
>
>
>
> --- In Visor@yahoogroups.com, "gwponder_2000" <coppertop@...> wrote:
>
>> Just ordered a Magellan GPS module for my prism. I am eagerly
>> awaiting delivery and am curious about a few things that the group
>> could help answer.
>>
>> First, is there storage memory on the module for maps or will the
>> maps have to be stored on the prism?
>>
>> Second, what's the average size of the maps? I have put just about
>> all I need on the Prism and have about 3mb left in memory. Is that
>> going to be enough to hold 2-3 maps?
>>
>> I am considering exchanging the prism for a pro to allow for more
>> memory but really don't want to give up the color screen. Any
>>
> advice
>
>> or tips in using this GPS reciever is appreciated.
>>
>>
>
>
>
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