When users run programs on their own computers, the ethical criterion is simple: to avoid doing wrong to them, the programs must be frei (under the control of the users). Service-oriented computing raises different issues, of which the most important one is: which jobs are legitimate for servers to do, and with what kinds of interaction with users?
Dr. Richard Stallman launched the free software movement in 1983 and started the development of the GNU operating system in 1984. GNU is free software: everyone has the freedom to copy it and redistribute it, with or without changes. The GNU/Linux system, basically the GNU operating system with Linux added, is used on tens of millions of computers today. Stallman has received the ACM Grace Hopper Award and the ACM Software and Systems Award, a MacArthur Foundation fellowship, the Electronic Frontier Foundation's Pioneer Award, and the the Takeda Award for Social/Economic Betterment, as well as several doctorates honoris causa, and has been inducted into the Internet Hall of Fame.
You can find out more about Dr. Stallmans speech here. Admission is free of charge, and the public is encouraged to attend. A registration only for Dr. Stallman's speech, which can be done anonymously, while not required, is appreciated, as it will help us ensure we can accommodate all the people who wish to attend.