Actually, I have used my father's Garmin Nuvi 660 multiple times. Yes, a GPS is nice and makes things much, much easier, but that is the point of GPS. I just think it is bad that so many people depend solely on their GPS, yet if they needed to use a map they wouldn't know where to buy one, let alone figure out how to read it. It seems like more of the people really complaining and wanting GPS on iPhone want it because they aren't able to figure out the maps without it.
I think I answered this above but to insure you understand...I plan my route prior to departure so would not end up in this situation...even if I did...If my travel was north and the detour was in an easterly direction, then I would go north on that detour and then proceed west until I got back to the road I was using...I don't need to punch any buttons or even use the iPhone to figure that one out. It is also answered by Chr1s below.
Too many people are reliant on the digital world and are slowly forgetting how to do it the "other" way. I have never forgotten the right way and only use the digital world to have fun with navigation and just to see it in use. I have been traveling this country for over 24 years and used the outdoors for 35 and never, ever been lost. I didnt need GPS, iPhone or any other gadget other then a compass to get there.
Except that there are plenty of times when a paper map or referencing a map on a phone aren't helpful solutions. Cases like being in unfamiliar areas, or at night, etc. If I am driving home from someplace I don't know very well, I don't want to pull over to check a paper map on the side of the road, or be driving down the highway with the inside light on while I consult written directions, or with only one hand on the wheel because I need to click next on google maps.
And you know what, I have a great deal of trouble with getting lost. For whatever reason, my sense of direction is dreadful. It takes several times before I get comfortable with familiar routes. I have plenty of other talents, my intelligence is not the issue, I just can't wrap my head around directions. It's just one of those things. The running joke with my friends if we are lost is to ask me which way to go, and then choose the opposite path.
For years I relied as best I could on maps, mapquest, google maps on phones, etc. They are ok, but nothing beats my GPS. In the 4-5 months since I got it, I am definitely too attached to ever go back.
It's all a matter of opinion. I totally understand where chr1s60 and SFCArcher are coming from, but I unfortunately don't have the innate skill or the training that others have had in finding their way. There are plenty of objections to GPS, and for someone with a great sense of direction, obviously they aren't as necessary. I am just playing devil's advocate and pointing out times where GPS makes a great deal of sense, depending on your knowledge level, where you are, etc. Planning ahead is useful, but sometimes doesn't always cover all the contingencies.
(And this whole thread is giving me deja vu, since I have had this very discussion with my girlfriend a few times; she's totally comfortable and understands where she is wherever we are, and I'm left going, "We've been down this street? Really?")