We have a very large and successful software business, and we're going to retain that. But open source is great for infrastructure code. The reason is that to make open source work, there has to be an overlap between the people who care about the software and the people who make the software better. The world spends way too much time and energy doing exactly the same thing in a proprietary fashion. That's just wasteful.
Nobody gains by that.
With Linux, you get people who work together and share innovation. The software is better and we, along with everybody else, get to spend extra programmer hours writing software that you can make money on. You're beginning to see a fair amount of use closer to the center of the enterprise. For instance, we have dozens of customers in trial evaluations of Linux on the mainframe who are spending lots of time and effort trying to see if Linux is ready for them. By and large, they haven't started buying yet.