I would like to contribute to this project as I find the prices of map updates for GPS navigation devices ridiculous - I may as well buy a new device every two years if I don't need constantly updated data.

Google maps is fine, and voice search and traffic updates sound good and all, but I don't think it is coming to my area any time soon...

My first update will be correct entries for the street I live in... coming to an OSM server near you very soon :-)
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Akselmarkå has been updated!
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I have an HTC Hero, and use the simple application "GPS Logger" to create GPX files.

Merkaartor is used for editing (in openSUSE GNU/Linux).

OpenStreetMap is a free editable map of the whole world. It is made by people like you.

OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.

OpenStreetMap's hosting is kindly supported by the UCL VR Centre and bytemark.