>I just don't see how the conversion will happen anytime soon, if ever.

I think that in a few years when people realize that they can make web pages that show in Netscape, IE, and anything else the same way, plus cell phones, PDAs and other small mobile devices (since XHTML is natively modular to accomodate for that) most companies will start to use the more cost effective XHTML.

We'll see.