16. An electronic device, comprising: one or more processors; a touch-sensitive display; and memory storing one or more programs to be executed by the one or more processors, the one or more programs comprising instructions for: receiving data relating to at least one of device movement and device proximity; receiving a touch input at a location on the touch-sensitive display; processing the received data relating to the at least one of device movement and device proximity to determine whether the electronic device is in one of a first or second state based on the received data relating to at least one of device movement and device proximity; if it is determined that the electronic device is in the first state, processing the touch input, including determining the location the touch input was received on the touch-sensitive display, and performing a function associated with the location of the processed touch input; and if it is determined that the electronic device is in the second state, processing the touch input, including determining the location the touch input was received on the touch-sensitive display, and forgoing the function associated with the location of the processed touch input.
16. An electronic device, comprising: one or more processors; a touch-sensitive display; and memory storing one or more programs to be executed by the one or more processors, the one or more programs comprising instructions for: receiving data relating to at least one of device movement and device proximity; receiving a touch input at a location on the touch-sensitive display; processing the received data relating to the at least one of device movement and device proximity to determine whether the electronic device is in one of a first or second state based on the received data relating to at least one of device movement and device proximity; if it is determined that the electronic device is in the first state, processing the touch input, including determining the location the touch input was received on the touch-sensitive display, and performing a function associated with the location of the processed touch input; and if it is determined that the electronic device is in the second state, processing the touch input, including determining the location the touch input was received on the touch-sensitive display, and forgoing the function associated with the location of the processed touch input. 23. The electronic device of claim 16 , wherein a user interface item is located at the location on the touch-sensitive display, determining the location the touch input was received on the touch-sensitive display comprises determining the user interface item located at the location on the touch-sensitive display, and the function is associated with the user interface item.