YouTube announced Thursday that the will be changing their embedded techniques. They will be changing from the <object> tag to the <iframe> tag. Why?

If you use the new embed code style, your viewers will be able to view your embedded video in one of our Flash or HTML5 players, depending on their viewing environment and preferences.

Simply put, if a visitor to your site is on their IPhone or IPad, YouTube will default the player to an HTML5 player rather than a Flash player.

Currently, this is really the only instance in which a person will need to default to an HTML5 player. But I am sure that as the technology becomes more wildly used, browsers will come with options to use HTML5 players over Flash and vice versa. I am sure this is just YouTube (owned by the same company that developed the Chrome browser) getting ahead of the game that is sure to be around the corner.