I was recently looking for a small projector for my smartphone and came across this screen magnifier that works with most brands of smartphones. It also works with iPods too. It's especially great if you have a smartphone with a smaller screen.
This is such a simple technology but it works like a charm. The magnified image is very good and the whole thing folds flat so it's easy to take with you.
If you've been looking for a way to share your screen, look no further. And at this price it is a great bargain.