YouTube is experimenting with a new i-frame based embed style that would server up good ole' Flash video for machines that support it and new fangled HTML5 video for Apple's iOS devices, iPhone and iPad:

An enhancement to our video embed capability is now available through a new embed code style. This new style uses and looks like this:

So, somewhere down the road, you'll be able to play the YouTube video you want, in-line on the website you want, on the device you want, Apple and Adobe be damned.

Example after the break.

[YouTube via 9to5Mac]