Sony has patented a hybrid DualShock controller which breaks apart and has Move motion components attaches to it.
A patent for the break apart DualShock controller first came to light in 2008, but this particular patent was filed in May 2011, but only published by Free Patents Online yesterday - and quickly dug up by TSA.
The "Hybrid Separable Motion Controller" schematics show a controller which snaps together and contains a magnetometer, accelerometer, and an embedded speaker.
Sony's PlayStation Eye camera would be a requirement with the controller.
Have a look at it for yourself through this PDF link.