Since last year's Americas IP Focus went to press, the law has evolved rapidly. Perhaps most internationally relevant was the US Supreme Court's June decision in Bilski v Kappos, which changed the criteria for determining patent eligible subject matter in the US and reinforced the country's commitment to allowing patents on business methods and software. It will be years before the true impact of that decision is known – as the lower courts and the USPTO attempt to define what constitutes an abstract idea and how much weight the machine-or-transformation test should still hold.