This should help to give the "corporate types" more confidence that Drupal is enterprise-ready.
http://gcn.com/articles/2011/01/25/ecg-open-source-drupal-7-cm-system.aspx
Also see http://www.microsoft.com/web/drupal
And it seems that they're actively pushing Drupal on their platform because I bumped into this through an ad they were running.