From Porkape via e-mail: http://www.gamasutra.com/features/20060517/murdey_01.shtml
Immersion's Victor Viegas on PlayStation 3's Lack of Vibration:
In addition to the monetary damages awarded, Viegas said the other outcome of the 2004 verdict was an injunction that, if applied, would prohibit Sony from any production, manufacture, or sale of the related technologies in the United States. It is this injunction that Sony is currently attempting to appeal.
Previous lawsuits in which immersion has played a part include a settlement with Microsoft (who was originally named as a defendant in the same suit Sony is currently fighting) and Electrosource, the company which produces the Pelican brand of third-party controllers. Both of these companies have settled with Immersion, but Viegas says he sees no current indicators that Sony will follow suit.
The company announced in a press release that the PS3 controller would lack vibration due to the possibility of it interfering with the controller’s new tilt sensors, which Viegas feels is unlikely.
“If what they’re saying is in fact the reason why [the controller will not have vibration], I’ve offered them numerous solutions to the problem,” Viegas said in an interview Tuesday. “I don’t believe it’s a very difficult problem to solve, and Immersion has experts that would be happy to solve that problem for them.”