An anonymous reader writes: At CEATEC Japanese telecom NTT Docomo is showing off a new user interface dubbed "Grip UI". As the name implies, Grip UI runs on a smartphone that’s equipped with side-mounted pressure sensors. One of Docomo’s goals for Grip UI is to add ways for users to control cell phones with just one hand. With modern phones you’re generally limited to using your thumb for navigation and selection. The trend towards longer, wider phones actually makes this a bigger problem and Grip UI could help solve it.