Hitachi Rollerball Interface Concept
Another concept device using a very cool system of see-through rollerballs and a back button to do just about anything. They had a few mock-ups and it really makes sense once you see how smoothly everything works with just a ball. Maybe the next iPod can get a scroll-ball?
![](data:image/svg+xml;charset=utf-8,<svg height="100" width="187" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
![](data:image/svg+xml;charset=utf-8,<svg height="97" width="187" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
![](data:image/svg+xml;charset=utf-8,<svg height="140" width="187" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
![](data:image/svg+xml;charset=utf-8,<svg height="105" width="187" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
![](data:image/svg+xml;charset=utf-8,<svg height="132" width="187" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
