iPhone and Satnav

[midgeman]

Hi,
Can anyone help advise me on the best satnav system for iPhones please? Ideally free or cheap, don't really want to pay for subscriptions or lots of updates, only need to use it in the UK too. And dont want anything thats going to eat up my net usage..

Also need a cradle, can anyone reccomend a good one please, preferably windscreen mounted.

Thanks

[midgeman]

Thanks guys, downloaded it earlier in the week, doesn't want to find me a route though, constantly says it cannot calculate a route, I'm off to north Wales today, a journey iv never done and no sat nav at the moment so going on Google map directions that iv printed out... lets see what time I get there.

It says poor gps when it starts up so don't know if that's got anything to do with it. was doing it even with 3G.
Iv got a route set up on Google maps on the phone but I think that uses data so don't really want to set it up and run it as a sat nav for the 4 or 5 hours I'll be driving.