The next stage in XML is looming. Rather than use XSLT to change XML into different formats (HTML, WAP etc) for different devices, the aim is to have applications deliver interfaces in an XML format that the browser then interprets on the fly into a style suitable for the device it's running on. Problem is Microsoft is promoting XAML in Longhorn, and Mozilla is promoting XUL. Oh well, so much for the universal interface.
Mind you having looked at both, they seem very large visual interface centric, so we'll probably still need to use VXML etc where other interface paradigms apply.
***Imported from old blog***