The NYTimes writes, in an article Apple Has Already Won the Flash-HTML5 War, that Apple has already won the war against Flash--paving the way for the HTML5 technology.
According to research by MeFeedia, the web standards & Apple duo are winning in the war for online video delivery systems. The HTML5 player now accounts for 54 percent of all video viewed online currently.
Many video sites and technologies currently use both HTML5 and Flash (Vimeo is one example). Such systems auto-detect the device type and display the appropriate format.
The NYTimes article credits the iPad as driving the nail in the coffin for Flash--as more people gravitate to that "magical" device for entertainment consumption.