Brightcove landed a significant blow to Adobe this morning by unveiling the Brightcove Experience for HTML5. The feature will give all of the company's partners the option of playing plugin-free H.264 video on any device with an advanced browser, including the iPad as well as the iPhone OS and Android 2.x phones. Movies can include embedded ads and a fully customized interface, and the service can auto-detect browsers to steer users to the right version.