One of the most interesting panel discussions I went to this year at SXSW was on Gestural UI. In it, the panelist explored what was next in gestural UI now that the iPhone has taught us the flick, pinch and shake. With the popularity and wide-spread use of sophisticated mobile devices, designers and developers can now use our natural gestures and the way we interact with the world to change the way we interact with technology.

So what’s the next big thing? Interfaces like the one seen in the film, Minority Report may be coming soon. Check out this video of the “G-Speak” operating system. This system uses common, gestural movements to perform computer related tasks like zooming in and switching from screen to screen.

Another up and coming innovation is “Paper Windows.” Imagine browsing web pages in the same way you browse a book or a magazine; turning web pages by literally flipping electronic pages. Here is a video of how it might work.

I’m not sure when these items will ever be ready for public consumption, but it’s very cool to think about the possibilities of future UI developments.