What your thinking of is the mouse and that patent is void.
Take another example: Automated Response To And Sensing Of User Activity In Portable Devices
every portable device has this feature even the first cellphone ever made, how you ask. Well even the first phone turned on and off when you told it to "automated response" it also placed called when you hit buttons thus preforming an automated response to activity from the user! Many other devices do things like dim the screen or time out like old pda phones ect. So I hope they expand to sue every mobile product ever made.
Also trying to patent the use of Heuristics to preform anything is like trying to say you can patent the use of addition for the purposes of accounting.