Sony said that the reason that its new controller can't vibrate is because it interferes with the technology which allows you to interact by waving it about.
However, according to Immersion boss Victor Viegas, the problem is because the controller is too light and flimsy.
A lot of the developers who had built vibration into the PS2 were also disappointed that the technology had been removed, he said.
To be fair to Sony, Viegas has managed to extract $90 million in a lawsuit against the Japanese corporation, for using its patented vibrating controller idea.
Losing that sort of money could make a lot of people go off the idea.
We are waiting for the estate of Rev. W. V. Awdry, of Thomas the Tank Engine fame, to sue someone over the idea of a FAT controller.
You can read the whole interview here. ยต