We all use our phones while wandering around, even if we shouldn't, and there's no denying its a dangerous way to traverse the world, even if you think you've mastered the old one eye peering viewing mode.
Apple might have a solution, with a patent that offers up Transparent Texting. Basically, the text you're viewing will appear in transparent bubble on the screen with a live feed of your surroundings in the background, direct from your rear mounted camera.
In theory its certainly a good idea, providing you with enough information to not walk into a pole or stumble over your favourite small animal or person. In reality, there are plenty of potential issues - like the brain melt which could be caused by a laggy screen or the trade off between available real estate for the feed and information.
The patent was apparently filed way back in September 2012 and has yet to become a reality but just you wait - it'll probably be pitched as the must have feature of the iPhone 6.