Tech demo shows some 3D-like goodness on your iPad 2 and iPhone 4
Called Head-Coupled Perspective by its creators, it uses head-tracker that changes the perspective according to your head's position, thus giving the items on the screen a very credible 3D look.
This is not something revolutionary, as Nintendo has been working on similar technologies for years, but it's still a nice thing to see on a smartphone, especially when we take into account that the things that make it all work are a front-facing camera and some software touches.
Take a look at the videos below to see this goodness for yourself, but don't expect it to be available just yet - it's a tech demo and it's unknown if/when we will see something like that on our iPhone 4 or iPad 2.
source: Engineering Human-Computer Interaction via TUAW