Smashing Magazine has a relatively new article that dissects some of the CSS3 techniques that are available at our disposal and provides examples of sites in the wild that are taking advantage of these techniques to create a rich and compelling user experience.
The article is great and this is what the Web needs. However the comments (SM comments are like YouTube comments if you get my drift) are rather unnerving to say the least. People fail to realize of principles such as progressive enhancement and that Internet Explorer 6 is not the standard to design against. The Web is moving forward, albeit not at breakneck speed but at a speed that is alarming enough for us to be worried. If we do not learn new techniques, we will be left behind.
Andy Clarke has posted his two cents on this issue.