On a personal level it is sad and tragic if someone dies pretty young because of cancer. My mother died because of esophagael cancer last year, so I know how hard and painful this is for family and friends.
As an IT professional, that has a very strong dislike for Apple, its overpriced products, blatant ripoffs of other products, ruthless business strategies, explotation of workers, pollution, non-conformity to open standards, lawsuits against other innovative, competing companies, etc. I can only say: Thank God his tyranny is finally over. Let's hope Apple will eventually get on the right path.