I\'m someone who wants to be up on the latest web technologies but also appreciate that alot people still use IE6/7/8. Is it a waste of code/time if half of it wont be displ
I'm developing a small-business oriented online app and decided to support only IE8, FF and Chrome. I also went for one stylesheet that degrades nicely (text-shadow, rounded corners). IE8 users will see square corners but it doesn't make the site unusable in any way.
I just think that the cost of making everything look perfect in all browsers (and maintaining it!) is much higher than the benefits.
The above also applies to HTML5 IMHO - unless you know that vast majority of your users will have an HTML5-compatible browser there's no need to invest in it right now. Unless the whole point of your site is to use one of the newest features.
Just tell yourself what problem of your users you are actually solving and solve that one.