Smart Phones?

A new Apple iPhone application called Email 'n' Walk from Phase 2 Media takes a live feed from the phone's camera, which is mounted on the rear of the device, to show the user what's in front of them as they type.

The text of your email appears as white lettering superimposed on top of the video feed - and is more than clear enough to read without blocking the view of the path or road ahead. Let's not let reality get in the way of email, duh!