Hacker News stories for 7 PM on Sunday Nov 24, 2013

0.507 Half an operating system: The triumph and tragedy of OS/2 comments

0.407 StackOverflow is down comments

0.376 Okay, Google, you officially beat Siri comments

0.160 Kern Type, The Kerning Game comments

0.010 Securing OS X at Google (video) comments

0.002 Results of my iOS app Facebook ad experiment comments