On this week’s podcast: Microsoft tries to scare XP users into upgrading; 3D-printed “gun parts” turn out to be printer spares; Apple’s profits take a tumble despite record iPhone sales; and F-Secure’s Mykko Hypponen worries that the web has become a “US colony”. In hot hardware of the week, Toshiba’s “detachable business Ultrabook”, the Portégé Z10t, tries to convince us to give up our ThinkPads.