Although this probably borders on heresy for this list, I use my iPhone 3-GS exclusively as a wifi device, no phone service other than Skype. I do so because I am not anxious to incur exorbitant charges for data. One thing which I presently do not have is GPS access.

Something I read from a couple of messages this afternoon suggested that if I used an external GPS receiver with my 3-GS, I would not incur data charges. I may well have misunderstood. So now for the questions. If I purchase an external GPS receiver, will this somehow obviate the need for cellular data? The only external GPS receiver I have heard of is something called Bad Elf. Are there better choices? Lastly, if I bite the bullet and purchase a data plan, is there any sort of GPS receiver in my 3-GS?

Thanks for any feedback.

Don Roberts

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