Adobe has released an embeddable HTML5 video player, as an alternate to it's Flash video player format. The player can also revert to a Flash video player if the user accessing the video does not have an HTML5 enabled device (like the iPhone or some versions of Internet Explorer). The Adobe HTML5 video player is both cross browser and suitable to multiple platforms like the extremely popular iPhones and iPads.
It should be noted that Adobe's new video player is not the first HTML 5 video player that contains the HTML5-with-Flash-fallback method. Vimeo's new player for example also has the functionality.