How to display Dropdown info sorted by GPS location in Objective C on the iPhone
<p>Is there an easy way to display a sorted dropdown list on the iPhone by "closest to current location"?</p>

<p>I.e. if I have a list of cities with their GPS locations, can I quickly sort a dropdown to show you city selections in order of closest to you? </p>

<p>Will this be fast?  Or will I have to presort (before you select the dropdown) in the background?</p>
