keywords: microsoft ballmer linux ceo office
text: Ballmer Calls Linux Threat Overblown, Touts Progress With Office &lt;b&gt;...&lt;/b&gt; When it comes to Microsoft, IT pros still want to hear more about security, Linux and product futures. CEO Steve Ballmer did his best to accommodate them Wednesday morning in a keynote speech at the Gartner Symposium ITXpo in Orlando, Fla.