YouTube in HTML5
This has actually been online since the Google I/O conference a couple months ago, but it’s a cool demo using the <video> tag for a YouTube video. The <video> tag is an awesome part of the up-and-coming HTML5 spec.
You’ll need either Chrome, FireFox 3.5, or Safari for it to work. It won’t look much different than what you’re used to, but the cool thing is that it’s not using ANY proprietary software or video codecs and it’s implemented without any plugins whatsoever. Cool stuff, check it out: