Flash is getting less fashionable, but browser support is pretty much ubiquitous. What good is HTML5 if you're trying to set up calls with people working in la

Flash is getting less fashionable, but browser support is pretty much ubiquitous. What good is HTML5 if you're trying to set up calls with people working in large, locked-down corporations, hospitals, etc., where they don't have the choice of installing a modern browser on their work computer? It's frustrating has hell, as a developer, but IE6 is still a painful reality for many users.