Email ‘n Walk lets you compose emails on the go while viewing the road ahead through your iPhone camera.
To send an email while on the move, just open up Email ‘ Walk and enter the subject and message text while a transparent view shows the world around you via your iPhone’s camera. Then, just hit “send” to send the message to the iPhone mail app, pick your recipients, and send away!
The application is currently offered for free in the Apple App Store.