JSON Location Tracker - PreCentral Forums
http://forums.precentral.net/homebrew-apps/225300-json-location-tracker.html
"This app is a single card that controls all the aspects of posting location data to a website: the post URL, the speed of GPS reading collection, and the size of the buffer."
iPhone & iPod Touch Now Uses Wi-Fi to Find Location - Cell Phone Digest
http://www.cellphonedigest.net/news/2008/01/iphone_ipod_touch_now_uses_wif.php
"Skyhook Wireless, provider of the Wi-Fi Positioning System (WPS), recently announced that Apple is using its technology for the new Wi-Fi location positioning feature in its Maps application on both iPhone and iPod touch. Using WPS, iPhone and iPod touch users can now locate themselves in the popular Maps application with the tap of one button. (See Skyhook Wireless featured in the Macworld Keynote.)"
Twinkle Twinkle Little iPhone, How I Wonder Where You Are | Gadget Lab from Wired.com
http://blog.wired.com/gadgets/2008/04/twinkle-twinkle.html
"Here's a great idea: Twitter+Location+iPhone. Twinkle is just that; a Twitter client which taps into the iPhone's location finding feature to let you tune into tweets from nearby people."