Just came home and opened the site in IE6.

What they do is serve stuff according to the results of browser sniffing.

And then have an iframe for the editor.

What's problematic with iframes and Opera or Safari? In Opera, there were some problems with JS iframes, but that was sloved two versions ago.

Or it may be that they have problems with all those display: none fields? I'd have to check more thoroughly to see about that.

Besides, the editor itself is a piece of GPL code. More precisely, under the Lesser GPL, which says that you mustn't charge for it. IOW, they cannot sell it.

-- erlik