Here I am is a Free iPhone application searches your exact location and provides you a link to your location from Google Map.

Here I Am also enables you to send that Google Map link (to your Location) to any of your contacts so that they may easily find you.

After locating you position, hit the email button to send your location to your desired contact in iPhone/iPod Touch running the firmware 2.0.

Link:

Download Here I Am (iTunes App Store)