I was checking out the GPS forums and thought it was pretty cool with how they can use google maps to see where they have been and how far and fast they went....
Want to bin my phone for an Iphone and if it does GPS like above - sweet 
Yes, but it's not very good.
By GPS Tracker you mean plotting points on a web site and other people can log on to see where you are? LiveTrack does that.
LiveTrack seems to round the position so you get a jagged track. They are releasing updates and similar tools like GPS Kit don't have the same problem, so it's not the phone at fault.
The real problem is that the iPhone battery will barely last for two hours on the GPS track.
What I would really like is a SMS triggered system where people can send me a special message from a phone or PC and the phone responds by getting the location and sending it back to the caller, maybe with on optional map or link to the position. That way the missus can see where I am when I go out kiting or flying or whatever.
There's a bit of a revolution in live tracking happening in Europe and those phones and services should filter through to us sometime soon.
Agree with Gorgo, battery wears out quick when on GPS and there is a long list of stuff that is not quite up to par. For instance:
GPS Tracker cannot run in background, so whilst you have your tracker on you are ok, but if your phone rings it will stop transmitting.
Its accuracy is average
Because it has to be on the whole time the GPS transmits all the time wearing down your battery. It would be better if you could set the interval at which it polls the gps location just as you can with the sending of location back to the server.
There may be other better apps out there for tracking location on the iphone, but I haven't found them.
Best thing about this one is its free.
If you want to be tracked for safety then Spot tracker is the go. It's touch expensive and it can be a little slow to get messages through, but it's made for the purpose and a lot of people use them.
Couple of hundred to buy and $100 a year subscription service.
I've been testing out a few tracker apps on my Android IDEOS and have not found one that is reliable or accurate enough to replace something like a GT-31.
Don't you need to use phase shifting algorithms for accuracy? Is there an iPhone app that is that hardcore?
Found it. Its called Motion X. And on of the good things is it has multitasking and bunch of functions that make it quite good to use. I.ll need to check this out on the water.
