Maybe I'm missing something, but recently there has been a lot of work in graceful degradation. Such examples include Modernizr (based upon yep-nope) which allo

Maybe I'm missing something, but recently there has been a lot of work in graceful degradation. Such examples include Modernizr (based upon yep-nope) which allow detection of features and asynchronous loading of polyfils for missing functionality. Missing css3 support for IE6-8 comes in a 10 second fix called CSS3PIE. To use it you add 1 css line to apply the htc to the necessary classes (or all with the * selector) and there you have curved corners in IE6-8 with no additional work.