title: Is it possible to add your own tags to a GPX file like in XML?
body: <p>I know GPX is a light-weight XML data format but what I want to know is it possible to add my own tag like <code>&lt;Town&gt; Some Town here &lt;/Town&gt;</code> which will hold the nearest town that the GPS data was done near or would I have to save this in a seperate XML file?</p>