Jamie Zigelbaum and other researchers at MIT’s Media Laboratory, working together with Professor Hiroshi Ishii in the Tangible Media Group, are pursuing a line of research they characterize as ‘body, object, space, screen, and surface’:
… today pixels are cheap and computers are fast — after 40 years we are almost ready to move past the mouse. With new gestural interfaces like g-speak  we can create digital environments that are nearly seamless with architectural space. We can create hybrid spaces where groups of people can interact with digital objects, physical objects, and each other using a shared physical language that is both legible and scalable.
One early instantiation of these ideas is the g-stalt interface: