Companies HAVE to realize that FOSS is NOT a one night stand, its a life long commitment :-)
why dont u file a PIL ? or sue them ?
Because that's not the way to beat them. If they have smart lawyers who have studied the facts and know that all legal issues are ``taken care of" in the deal - what's the point fighting on that ground. If they had claimed stuff that was a direct violation of the GPL or even pure fiction(remember SCO) - yes that would have been grounds for a case.
The best way to fight this is by opposing software patents and spreading that awareness among people.
Since you are so kindly asking me ``why dont u file a PIL ? or sue them ?" why don't you state your position on this thread as well?
Regards,
- vihan