Hacker News stories for 4 AM on Tuesday Sep 04, 2012

0.883 Building a SaaS startup in one of the least hospitable places on Earth: Japan comments

0.829 Don’t use MongoDB comments

0.395 A case for physically engraved L/R markings on headphones comments

0.375 UDID Leak : Identifying the Traitor comments

0.215 TiltShift.js - using jQuery & CSS3 to mimic tilt-shift photography (Chrome) comments