What’s Missing in Web 2.0?

“I believe that before web applications can truly make the desktop obsolete, we need to solve two important problems. Both might seem a bit surprising at first. Even though Javascript is a mess, neither of these points concerns building better AJAX UIs or frameworks to write them… One of my pet problems is engineering, not science; the second is science, not engineering: 1. Offline Access; 2. Encrypted, searchable storage.”