[ Thanks to tk421 for this link.
“Q: You run many different Linux and other open source
operating systems in your lab. Some of them are commercial and some
of them are community-based. Do you contribute to any of those
“In the cases where we have found issues, we have participated
and we have given things back.
“All the commercial distribution we pay for and it’s all billed
to Microsoft. We always have a fun time when we call for support,
and they say, ‘Oh it’s you, the Microsoft guys.’ But they’re great
they always help. It’s all on the up and up…”