Patentseed

If I am reading Sony’s patent application 12/270,924 correctly, I’d have to say it has dubious applications.  From my take, it appears that Sony is desperating trying to catch up in the motion sensing arena and seems forced to figure out something not yet done with motion sensing game controllers.  Here’s what they came up with.  A game controller that vibrates when you pull a trigger (such as firing a gun), wherein the vibration is detected by the motion sensor in the controller and sent to the gaming device.  I suppose that is how the gaming device will know you pulled the trigger.  I can’t seem to wrap my head around how this is better than just sending a signal from the controller to the gaming device to say the trigger has been pulled.  Perhaps I’m not getting something, but a second read didn’t help.  Anybody else want to take a stab at interpreting?