Hi Lachlan,
An document with <xbl xmlns="http://.../xbl";> as its root element will already provide that functionality much more reliably than the MIME type. It's the namespace that matters in XML, not the MIME type.
But that was one of Mark's points, I think...that an XSLT with <xbl> as the root element could be mistaken for an XBL document. (And to answer Ian's question as to why you might want to have such an XSLT file--how about a transform for creating XBL from HTC?)
Another reason would be to allow for content negotiation, but that would only be useful if there were ever another binding language for browsers to choose from and authors had a reason to provide equivalent bindings in two different languages.
Which I think is very likely. (To link back to another discussion, I also think it's likely that you could have more than one language inside the XBL document itself.) Regards, Mark -- Mark Birbeck CEO x-port.net Ltd. e: [EMAIL PROTECTED] t: +44 (0) 20 7689 9232 w: http://www.formsPlayer.com/ b: http://internet-apps.blogspot.com/ Download our XForms processor from http://www.formsPlayer.com/
