Hacker News on 11 April 2011

• Notice: Experimenting with HN
• Apple AirTunes private key extracted
• Peter Thiel: We’re in a Higher Education Bubble
• IPad 2 gets glasses-free 3D display using front-facing camera for head tracking
• ReCAPTCHA Founder's New Startup: Killing Two Birds With One Stone
• Ask HN: Why can't I make as much as I make?
• "Diff for HN": Update and highlight changes
• White Hat SEO: It F$#ing Works
• What Lucky People Do Different
• Copy-on-write B-tree finally beaten.