A team of Singapore-based researchers has managed to squeeze 500,000 lenses onto a screen protector that turns your Smartphone in to a true glasses free 3D display. The product is now for pre-order at US$34.95.
Currently, it is available for iPhone 5 and iPod Touch (5th Gen). In future, it will cater for Android phone (Samsung GALAXY S4) and iPad 4. There will be 2 apps to accompany this product. They are: EyeFly3D Vid and EyeFly3D Img. Here is a video about the product.
Not sure if the viewing will be affected by this screen protector with 500,000 lenses or not. Anyway, below is the link to EyeFly 3D site.