"Now on my way" is a simple iOS appliation to send message easily to your family, like "I'm now on my way home." or "I'll bel late...", with E-mail and twitter.
You can specify text messages to send.
To send location info in message, turn "send location" switch on.
Speficy destination mail address.
Tap message buttons to send message.
Use e-mail and twitter button to select which method to use for message.