Microsoft's Ultimate Beta Tester? Itself:

  • 60,000 machines were running Windows XP Service Pack 2 during its beta phase
  • By mid-June
    • Microsoft had 16,000 Windows Vista Beta 2 users (I'm one of them)
    • 25,000 on Office 2007 Beta 2 (I'm one of them)
  • 6,000 mailboxes are now on Exchange 12 (I have no idea if I am one of them)
  • 30 Longhorn Servers are already in deployment
  • 1,000 Microsoft employees are running the next version of Windows Mobile, code-named "Crossbow,"
  • 7,000 Systems Management Server v4 -- renamed to System Center Configuration Manager 2007-- installations are live.
  • Over 3,000 machines running the next Microsoft Operations Manager release are also in production