Apple also faked their "entire internet" iPhone demo in their 2008 keynote. At the time, if you visited the National Geographic website without Flash installed,

Apple also faked their "entire internet" iPhone demo in their 2008 keynote. At the time, if you visited the National Geographic website without Flash installed, you'd be shown a hero banner stating "this presentation requires Flash" with a large download button. Jobs' demo had the banner, but the Flash message was edited out.