A global coalition of more than 80 software companies, associations and developers has declared the 24th of September to be the "World Day Against Software Patents".
According to Benjamin Henrion, initiator of the StopSoftwarePatents coalition effort,
The aim behind StopSoftwarePatents is to gather a worldwide coalition of businesses and civil society in order to get laws which clearly exempt software from patentable subject matter. This is the best solution for getting rid of 'patent trolls' and uncontrollable legal risks generated by software patents. The day the software industry forms a clear front against software patents will be the beginning of the end for the 'patent trolls'.See the press release here, along with a link to a draft petition (making reference to the "American disease" of patent law).
More at endsoftwarepatents.org
UPDATE: Apparently, it appears that the entire patent system is "stifling science" - read more at BBC News (link)