Since hearing about HTML5 and CSS3, then later reading Hardboiled Web design by Andy Clarke,
I have been working on a presentation to help introduce these development methods to my clients. If all i said to them was “these are the latest development methods, but there will be visual differences”, I’m sure you can imagine the response I would receive.
Most of the clients I have these days tell me they want the following: HTML to validate as strict or transitional, CSS to validate, site to be Accessibility level 2+ and last but not least, design needs to look the same across all browsers. They have learnt this information from us (developers and agencies) over the last 10 years of us educating the world on best practice. Now we need to re-educate them and it wont be easy! Most people steer away from things they don’t understand out of fear of the unknown.