[NTG-context] what about TeXML ?

Hi, today, reading through the list archive, I discovered TeXML and the documentation of Paul Trembley. The way from TeXML to ConTeXt way clearly described, a connection between TEI (!) XML and TeXML was mentioned, and all in all it was recommended to be the link between XML and ConTeXt. Well, I have no skills in writing XSLT, thus I have no idea how to come from e.g. my TEI XML to TeXML (otherwise I would have probably tried to jump the gap directly) Does anybody know more? Does an appropriate XSLT for creating TeXML already exist? Thank you, Steffen