Lawsuit from immersion (force feedback people) basically stopped them and even went over the extra mile and gave an extra slap on the wrist after sony became more aggressive and attempted to allege that immersion was in fact commiting fraud... haha funny story
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.
sony being a hell of a lot more beureaucratic than microsoft I'm not suprised really
http://www.gamasutra.com/features/20...urdey_01.shtml