Filippo di Pisa is a Java and ActionScript/Flex developer. He has been developing in different languages for more than 10 years, focusing on enterprise applications and games. Thanks to his strong passion for language programming and software engineering, he learned different high-productivity technologies like Java, Spring, Hibernate, Ageci Security, ActionScript, Flex, ColdFusion, Fusebox, JavaScript, Perl, and others. Because of his interest in game development, he trains daily using artificial intelligence, physics, mathematics, and 3D engines like Papervision. Filippo is also a fan of agile and XP development. In 1995, while he was working for his own company, he also managed a small web room to provide hosting and housing solutions, and he learned a lot about Linux distributions Debian and Red Hat, Windows NT, DNS servers, mail servers, and so on.