Touch user interface supporting global and context-specific touch gestures that are responsive to at least one finger angle

1. A user interface method for use with a touch gesture user interface in a system implementing global or universal gestures and application-specific gestures for the control of software executing on a device comprising a touch user interface and a computational processor, the method comprising

Recognizing at least one posture of a finger in contact with a tactile sensor,

Recognizing a touch gesture from a plurality of possible touch gestures by recognizing specific changes between postures, the changes comprising at least one recognized change in the angle of finger contact with the tactile sensor,

Assigning a user interface function to the recognized touch gesture,

Directing executing software to perform a user interface operation associated with the recognized touch gesture, the user interface operation selected from a plurality of possible from a user interface operations, and the association from plurality of possible associations, the plurality of possible associations comprising at least a global type and a second type, the first type of association being common across applications and the second type of association being an application-specific association that is specific to an application executing on the system, and

Wherein the executing software is responsive to the recognized touch gesture.

2. The method of claim 1 wherein when a gesture with a context-specific association is recognized, the user interface operation is determined by the application that has a currently active user-interface focus.

3. The method of claim 1 wherein the association is context-specific.

4. The method of claim 1 wherein the tactile sensor is comprised by a touchscreen.

5. The method of claim 1 wherein the gesture is used to control the system.

6. A user interface method for use with a touch gesture user interface for implementing global or universal gestures and context-specific gestures for the control of user applications executing on a device comprising, the method comprising

Recognizing at least one posture of a finger in contact with a tactile sensor,

Recognizing a touch gesture from a plurality of possible touch gestures by recognizing specific changes between postures, the changes comprising at least one recognized change in the angle of finger contact with the tactile sensor,

Assigning a user interface function to the recognized touch gesture,

Directing executing software to perform a user interface operation associated with the recognized touch gesture, the user interface operation selected from a plurality of possible from a user interface operations, and the association from plurality of possible associations, the plurality of possible associations comprising at least a global type and a second type, the first type of association being common across the system and the second type of association being an application-specific association that is specific to an application, and

Wherein the executing software is responsive to the recognized touch gesture.

7. The method of claim 6 wherein when a gesture with a context-specific association is recognized, the user interface operation is determined by the application that has a currently active user-interface focus.

8. The method of claim 6 wherein the association is context-specific.

9. The method of claim 6 wherein the tactile sensor is comprised by a touchscreen.

10. The method of claim 6 wherein the gesture is used to control the system.

11. A user interface method for use with a touch gesture user interface for implementing global or universal gestures and context-specific gestures for the control of user applications executing on a device comprising, the method comprising

Recognizing at least one posture of a finger in contact with a tactile sensor,

Recognizing a touch gesture from a plurality of possible touch gestures by recognizing specific changes within postures, the changes comprising at least one recognized change in the angle of finger contact with the tactile sensor,

Assigning a user interface function to the recognized touch gesture,

Directing executing software to perform a user interface operation associated with the recognized touch gesture, the user interface operation selected from a plurality of possible from a user interface operations, and the association from plurality of possible associations, the plurality of possible associations comprising at least a global type and a second type, the first type of association being common across applications and the second type of association being an application-specific association that is specific to an application, and

Wherein the executing software is responsive to the recognized touch gesture.

12. The method of claim 11 wherein when a gesture with a context-specific association is recognized, the user interface operation is determined by the application that has a currently active user-interface focus.

13. The method of claim 11 wherein the association is context-specific.

14. The method of claim 11 wherein the tactile sensor is comprised by a touchscreen.

15. The method of claim 11 wherein the gesture is used to control the system.

16. A user interface method for use with a touch gesture user interface for implementing global or universal gestures and context-specific gestures for the control of user applications executing on a device comprising, the method comprising

Recognizing at least one posture of a finger in contact with a tactile sensor,

Recognizing a touch gesture from a plurality of possible touch gestures by recognizing specific changes within postures, the changes comprising at least one recognized change in the angle of finger contact with the tactile sensor,

Assigning a user interface function to the recognized touch gesture,

Directing executing software to perform a user interface operation associated with the recognized touch gesture, the user interface operation selected from a plurality of possible from a user interface operations, and the association from plurality of possible associations, the plurality of possible associations comprising at least a global type and a second type, the first type of association being common across the system and the second type of association being an application-specific association that is specific to an application, and

Wherein the executing software is responsive to the recognized touch gesture.

17. The method of claim 16 wherein when a gesture with a context-specific association is recognized, the user interface operation is determined by the application that has a currently active user-interface focus.

18. The method of claim 16 wherein the association is context-specific.

19. The method of claim 16 wherein the tactile sensor is comprised by a touchscreen.

20. The method of claim 16 wherein the gesture is used to control the system.