"My guess is that Bilski ends the debate about the limits of patentability through the US courts for now; while in Europe it is difficult to see there being much court-led change either - given the recent decision of the EPO's Enlarged Board of Appeal. If this is right, it probably means that if there is to be a challenge to existing regimes it will have to come through legislation. And to my mind, that probably means growing calls for reform from the anti-software patent side. As a result, I would expect to see an increase in activity on both sides of the Atlantic from anti-groups as they seek to create momentum behind calls for legislation to limit patentability. They are very good at this and in the past the pro-patent side has been very bad at responding. I wonder if it will be different this time."