While a good number of its machines are already running the OS -- about 13 percent at this point -- the United States Army has mandated that before the clock strikes midnight on December 31st, 2009 that all of its Windows-powered computers must switch from XP to Vista, presumably and hopefully with Service Pack 2. Additionally, all Office 2003 users will have to upgrade to the 2007 variant, but thankfully, someone with a little Vista experience made sure to omit standalone weapons systems from the mandate -- you know, because there's not really time to click through eight confirmation boxes when launching a time-sensitive homing missile. All jesting aside, we're flummoxed that the Army didn't just wait for Windows 7 to roll out in a few months before making this decision, but hey, what's a few more billion in upgrade costs next year, right?