The main screen that is presented to you when you start IAmHere up looks like this:

The big blue button at the top is the main activity button and is shown here in its inactive state. It is inactive when starting up or when there is no location information available for the iPhone.
The active button looks like this:

Below this button is some informational text. When no location is available, it will say IAmHere is waitingas above. When information is available, the text will say how accurate the available location information is. For example:

If you are using an iPhone, the built-in geo-location facilities will use different methods to try to obtain better accuracy, so you should see the accuracy range decrease over time.
When you are happy with the accuracy, press the blue button. IAmHere will construct an email to send and take you to the email program. From there, you can simple send the email. Optionally, you can add, change, remove recipients and edit the text of the messge.

