Not very practical if you need the bleeding edge browser to even view the slides. Couldn't get past the first slide in Safari, Chrome, or Firefox on my Mac. And

Not very practical if you need the bleeding edge browser to even view the slides. Couldn't get past the first slide in Safari, Chrome, or Firefox on my Mac. And I keep that shit updated. CSS3 will be a wasted effort if 1) not all browsers implement it in a sane way (looking at you IE and mobile Safari) and 2) people actually update their browsers. The only things I use that are "CSS3" are shadows and rounded corners. If it doesn't look 'OK' in IE7 I don't do it. If it doesn't work in IE7, I design around it so it does. The minute you require the nightly build of any browser to run a tech demo you might as well be running flash. The beauty of HTML5 and CSS3 is the promised ubiquity. Capability without wide adoption will turn CSS3 into the next Silverlight.