As interest in HTML5 and CSS3 heats up, you may be wondering when you'll finally get to implement them in your own code. They can seem almost unusable right now due to cross browser support issues. Many of us are still stuck supporting IE6 and can't imagine trying to code with new standards that are iffy in even the most recent browsers. Wide support is coming, though it may take a bit of time yet.
I have yet to use one myself, but it's nice to know the option is available, and that there are strides being taken to make CSS3 more widely used. Eventually we will have to start using CSS3 no matter what. The real question is when that will be. For some of us, it might be right now.