This guy would've had to start a car company in order not to be liable for millions in legal fees if he lost?
http://en.wikipedia.org/wiki/Robert_Kearns
Somehow I think the big companies will exploit this, and start violating NDAs and real patents willy nilly, since the bar has been raised for them.
But the patent trolls are doing enough damage too, I am not sure if it's worth hurting a few real deserving inventors.