"We have some customers, a lot of customers using Vista. A lot of customers," Ballmer said. "And we have a lot customers that are choosing to stay with Windows XP and as long as those are both important options, we will be sensitive and we will listen and we will hear that.
He added, "I know we're going to continue to get feedback from people about how long XP should be available. We've got some opinions on that. We've expressed our views, but certainly to this crowd ... I'm always interested in hearing from you on these and other issues."