Much like Type n Walk shows you what's on the other side of your phone while you text, MegaReader creates a transparent backdrop for ebooks. Let's read A Tree Grows In Brooklyn in front of a tree growing in Brooklyn!
It's the first heads-up display of its kind for an iOS ebook app, and works on any iOS device with a camera that runs version 4.0 or higher. You can only read DRM-free books, unfortunately, which means that MegaReader's stash of 1.8 million free books is primarily classics and indies. But! They're classics and indies you can read on the go without bumping into things. Which, for a two dollar app, isn't half bad. [MegaReader via Switched]