I just tested Geolocation on Firefox 3.6 and iPhone Safari (os 3.1.3), the result is interesting, firefox is more accurate than safari. any one got idea how to make iPhone Safari result more accurate.

this is the code for testing:

navigator.geolocation.getCurrentPosition(handler, {enableHighAccuracy: true});

function handler(location) {
    var message = document.getElementById("message");
    message.innerHTML = "<img src='http://maps.google.com/staticmap?sensor=true&center=" + location.coords.latitude + "," + location.coords.longitude + "&size=300x300&maptype=street&zoom=16&key=ABQIAAAAZrVtlT2df2pkfI_RZB_6WBRWTAkRKJS7h1XjKaOTqACHuw1n0BT5cATkkKFnZNGHmrwUw9IilQK0Eg' />";
    message.innerHTML+="<p>Longitude: " + location.coords.longitude + "</p>";
    message.innerHTML+="<p>Latitude: " + location.coords.latitude + "</p>";
    message.innerHTML += "<p>Accuracy: " + location.coords.accuracy + "</p>";

    // call the function with my current lat/lon
    getPlaceFromFlickr(location.coords.latitude, location.coords.longitude, 'output');
}

. .

test from here