Free software, copyleft and trends intellectual property.

This article discusses the implications of the intellectual property system as applied to software, especially the use of patents, for innovation in developing countries; it also assesses thc possible consequences of the appearance of free software and a new intellectual property system in the innovation process in countries such as Brazil; finally, it attempts to analyse the new dimension of intellectual property as well as its context in the current debate on 'global patents' as opposed to a more flexible copyright system. Some of the questions discussed are: Is a more flexible copyright system an instrument to promote technological innovation? Does the reduction of the income of some software companies in developed countries point toward an exhaustion of the sales model of user licenses for software? What are the threats and opportunities for the new business model based on free software and copyleft in Brazil? Can the motivations for the use and development of free software promote the Brazilian software industry?