I took "abusing the HTML5 History" to the next level.
Around the launch of IE9 beta I asked Dean Hachamovitch (IE honcho at MSFT) what he thought about people typing random things (besides URLs) into the navigation bar. I'd noticed not entirely tech-savvy people in my life using the navigation bar as sort of a launch bar for their whole browsing experience, using it for new searches, history exploration, etc.Hachamovitch reminded me that this was not really a new thing, as people have been using the command line since the dawn of time. Never did this really sink in until I saw this demo: The URL bar is a command line for the people. Behold its power.