I did some more digging, and found this PDF presentation on the case: http://www.cs.berkeley.edu/~tlavian/spring2009/studentsPresentations/IEOR%20190G%20-%20Je

I did some more digging, and found this PDF presentation on the case: http://www.cs.berkeley.edu/~tlavian/spring2009/studentsPresentations/IEOR%20190G%20-%20Jerry%20Zhang%20-%20Immersion%20v.%20Sony%20Presentation.pdf http://www.cs.berkeley.edu/~tlavian/spring2009/studentsPrese... There's some clear prior art, especially the Nintendo Rumble Pak, so it's pretty hard to take this as an example of IP law rewarding creativity.