I'm sure the technical and emotional arguments that Flash sucks had an important role to play in why Apple didn't include it, but I like to think it's almost simpler than that: Flash expects (and often requires) the traditional keyboard and mouse interfaces. The iPad has neither.<p>Sure, the big Flash sites like YouTube could easily get away with translating touches to clicks and it'd probably "just work" for them, but how do you handle the millions of sites that depend on rollovers to reveal menus or full keyboards to control game characters? You can't. There's just no elegant way to translate that to the iPad.<p>HTML/CSS was designed to degrade gracefully in the face of changing client capabilities. Apple can more freely create a new environment that can still acceptably display HTML/CSS content because of that core design decision. Sure, some sites will do things that break even on an iPad (or iPhone or Android - there's no right click, still no ever-present keyboard or mouse, unusual screen resolutions, etc.) - but for the vast <i>vast</i> majority of HTML/CSS sites, the necessary information is still conveyed or available in some useful way almost by default.