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Instead of relying on your memory, or finding a place to put all your stuff down to find a pen and paper, wouldn't it be so convenient to simply write "level 4, row H" in the air and be able to retrieve it later?

Accelerometers are the devices in phones that not only keep track of the phone's movements, but make it possible for the display screens to rotate from landscape to portrait modes depending on how the phone is rotated. These devices are always "on," so there is no additional burden on the phone to use this new application

Human-computer interaction is undergoing a revolution, entering a multimodal era that goes beyond, way beyond, the WIMP (Windows-Icons-Menus-Pointers) paradigm. Now European researchers have developed a platform to speed up that revolution.

We have the technology. So why is our primary human-computer interface (HCI) based on the 35-year-old Windows-Icons-Menus-Pointers paradigm? Voice, gestures, touch, haptics, force feedback and many other sensors or effectors exist that promise to simplify and simultaneously enhance human interaction with computers, but we are still stuck with some 100 or so keys, a mouse and sore wrists.

The EU-funded OpenInterface (OI) project took as its starting point the many interaction devices currently available – touch screens, motion sensors, speech recognisers and many others – and sought to create an open source development framework capable of quickly and simply supporting the design and development of new user interfaces by mixing and matching different types of input device and modality.