Why is is that none of these companies writing iphone gps apps understands how the iphone works? I have looked into everything and they come in two flavors, one is subscription and the other is standalone. Who in their right mind would pay $10 a month to use gps? Only someone who has money to burn and excludes at least 90% of us. The standalone versions all weigh in at 1gb or up. I find space a premium on my iphone with my stash of music, videos and apps. I am not giving up a gig of space to hold maps to 99% of the cities in the US that I will never visit in my life. These guys need to get a clue!