What is the latest offline GPS app for iPhone that you liked the best for driving with point to point directions?
I'm sure this isn't what you are after, but I'm back on the old fashioned Garmin. After using several apps I really prefer the dedicated GPS machine. I use a beanbag so it is easy to put up and take down, and no ugly rings on the window.
Roberto: I am also interested in this answer. Hopefully someone can provide a tip. I am also interested in an offline app for walking directions.
Unfortunately I use the same method as NIgel with an older Garmin Nüvi so have never had occasion to use off-line GPS app's.
One method I used last year for pedestrian use (when I didn't have the Garmin with me) was to switch on the data long enough to download a map and plot my destination, and then switch it off. The GPS still followed my progress quite nicely so that seemed to work fine. I suspect the off-line app's will require lots of memory so hopefully your iOS device has enough available.