My dad has a lumia and he wanted to try and use the maps on it to get him somewhere next Monday, but since I'm an iPhone user I've no idea how it works, I mean I'll soon pick it up when I've had a look but I just wondered if there's anything else I need to know before using it? The maps will be up to date because I make sure he always updates his phone apps/software. Other than that is it just a case of putting in an address/post code and that's it?

Secondly will this be using his mobile data whilst in use?

Cheers

Yes basically.
But.... you can download maps for offline use.
See here http://www.techradar.com/reviews/pho...1006/review/11

If you download the maps then the only data it will use is a small amount to use mast triangulation to speed up the GPS lock (aka A-GPS ie Assisted GPS). As with all sat-navery a good idea to check the route to make sure it makes sense. My Lumia always wants to use a "Balanced" route and I always change it to "Fastest" route. The roundabout symbols do *not* reflect the layout of the actual roundabout (as Garmin sat-navs do for example) so be careful to check the exit number shown.

Ok brilliant thanks for the info folks