it is real gps, or it uses cell phone towers to triangulate your position. You can use gps for free in the google maps app
The plastic backed 3G iPhone has true GPS, the chrome backed iPhone has GSM location. The latter isn't bad actually, but its not as good as GPS. iPhone GPS is straight out brilliant.
it's already on your phone. The icon with the little map that says "maps"![]()
not it uses satelites for free. No data required.
? if i don't use wifi it cost me mobil net taxe?
so when i shutdown my wifi and my Edge. it well still work?
it well still could find my loc. and show it on a map?
You'd have to consult your plan. Ideally you should have an unlimited dataplan. I can't imagine an iPhone without it.
Try it. If the radios are off, it can't access the network.
just did. an it didn't work. i know i have a 3g iphone. so.
I don't have an iPhone, but I do have Google Maps on my phone. For me, its a web service, there are no maps actually on my Blackberry. If you can't view a map without the radio on, then its probably a similar setup, your phone will call for maps from Google based on need. That significantly reduces the installed size of the app, and it wouldn't shock me if there are no maps actually contained on the iPhone.
GPS does use satellites, its just a location service. The maps app interprets that, and shows it to you in a way that we can understand, on a map. But that map has to come from somewhere...
If you don't mind jailbreaking, there's some download maps app on cydia. I think Lifehacker highlighted it a while ago.
I do not endorse or encourage jailbreaking, what you do with your iPhone is your own business. Google maps is really nice, it even can show you traffic now in certain areas. It tells me that I'm ten blocks east of where I am on my phone, but hey, I don't have GPS. Its still nicer than Blackberry Maps, the worst first party app ever.