Its nice to see successful tech companies actually fighting some patents. It makes me sad to see Apple Microsoft IBM etc just pay patent trolls because it is cheaper to do so than defeating the patents.
Patent trolls play the probability game which usually results in a net gain because the legal system is failing.
I would say that there should be laws against this but that will result in another loophole or way of making money.
Perhaps I'm a socialist wierdo, but I'd favour scrapping the entire patent process for something which rewards positive contributions to society as a whole rather than who can screw who first. People should be creating things that improve the human condition, not enslave it.