[maemo-developers] Navigating on OSM data on maemo

[From: Christoph Eckert]

Hi,


> The big issue at the moment is that the  
> OSM data (which is what I'll be using at least as I don't have any  
> Garmin maps for Navit) lack certain metadata which would be useful.  
> The main thing here is the road speed, or some indicator of what the  
> road speed might be (e.g. road type data - in town/country/etc.)

currently you will have difficulties to determine if a way, for example, is in 
a certain country or within a residential area. I guess it still will last a 
while until we have enough such data in our database.

But does it matter right now? Some examples already show that routing based on 
OSM data is possible, and that the results can copete with the results of 
commercial routers.

BTW: There's some discussion about standardizing a binary file format for 
mapping applications @OSM-dev ("Call to mobile developers: OSM binary file 
format"). No clue if it will be successful, but at least there's a wiki 
page :) :
http://wiki.openstreetmap.org/index.php/OSM_Mobile_Binary_Format

Cheers,

ce