User interface for cross-device requests

A computer-implemented method of defining a region of a user interface for transmitting cross-device requests at a mobile device that comprises a processor, the user interface, and a plurality of connectors each for interconnecting the mobile device with at least one of a plurality of other devices, each of the plurality of connectors at a defined location on the mobile device and configured to provide an indication detectable by the processor of when a connection to one of the other devices is made or lost, said method comprising:

• detecting, by the processor, an interconnected device that is interconnected with the mobile device by way of at least one of the plurality of connectors;
• establishing, by the processor, a communication channel between the mobile device and the interconnected device;
• determining, by the processor, a spatial location of the interconnected device relative to the mobile device, based on at least the defined location of the at least one of the plurality of connectors;
• defining, by the processor, the region on the user interface of the mobile device in dependence upon the spatial location of the interconnected device, wherein the region is proximate a border between the touch screen of the mobile device and the interconnected device;
• and
• transmitting, by the processor, a request to the interconnected device by way of the communication channel upon receiving an input gesture at a location corresponding at least in part to a location of the region on the touch screen.