I have a Nokia E71
with it came bundled a Satnav package, am not sure whose it was. I have since downloaded googlemaps and ovimaps and tried to use them both for Satnav.
However, by far the best Satnav I have used on the phone was the Vodafone's own branded SatNav - I generally only use it when I am heading into a city I do not know very well.
The first time I used it was heading from Peebles to Perth. as I approached Edinburgh, a Traffic announcement on the Radio told me that Edinburgh bypass was totally blocked due to a few accidents.
I headed into Edinburgh, a city I have never driven through and do not know well at all.
I turned on the SatNav told it I was going to Perth and let it go as I continued heading into the city.
it quickly established my location and my route. - the first thing it told me was 'Updating route due to Traffic'.
The route then took me through the centre of Edinburgh quickly and easily on a friday late afternoon.
I arrived at the Forth Road bridge without any problems.
Arriving at the Girlfriends 10minutes later than I expected.
A great tool, that I would only replace when I change to an Android phone (will stay with vodafone especially if they have created similar for the Android).
The best part it is Free.