With support in Chrome, Firefox 3.5, Opera, and Safari, HTML 5 is coming at you like a runaway train. Here are some suggestions to help you prepare to get on board rather than be left at the platform or tied to the tracks. See what others have done#section2 The first thing you can do to prepare for HTML 5 is see how other people are using it. A visit to the HTML 5 gallery will show you how several