As expected, the 2.0 version of iPhone released today includes a number of security updates, patching more than a dozen holes in the slimmed-down OS X operating system that powers the devices. That means for those who already own Apple’s mobile device, it’s time to update. As detailed in a column last week, a number of these patches are updates that Apple shipped earlier this year for Safari and/or the version of OS X designed for Mac desktop and laptop computers. iPhone 2.0 bundles some 13 security updates, five of which address previously undocumented security flaws. Among the more notable (if not serious) patches: One fix for the gadget’s Safari Web browser that was addressed by a number of other software makers (including Mozilla) back in June 2006. Another Safari update plugs a security hole that Apple sealed in its Microsoft Windows version of Safari last month. Another fix corrects