"The US Supreme Court has issued on Monday a ruling that many people had been waiting for in the so-called "Bilski" case1, regarding a patent on a business method. This decision, even though it does not exclude every software from patentability, invalidates a majority of them, including those patents on computer implemented intellectual methods. It is now time for European lawmakers to halt software patents' proliferation in Europe."
Source: http://www.april.org/fr/bilski-case-united-states-starts-clean-software-patents-minefield