Yea Guy, there's
one fully compliant program - Amaya, which is primarily an editor (and not even a web editor per-se, it's primarily an
XML editor).
However, the problem is you effectively need to support a number of layout engines: several different versions of Trident (Internet Explorer), Webkit (Safari, Chrome), Gecko (Firefox) and potentially Presto (Opera) - and that's before you consider mobile browsers, which tend to have far poorer support...
ACID is obviously a wider-ranging test, and I'm focusing just on CSS support for my argument
