Custom XML export/import

[Ken Kuhlman <kskuhlman gmail com>]

In Excel 2003 pro, there's a new feature to import & export arbitrary
XML documents via "XML Maps", which map XML schemas to XL lists.

An example of an expense report using this functionality is documented at: 
http://office.microsoft.com/en-us/assistance/HA011109661033.aspx

Has there been any discussion about adding this type of functionality
to gnumeric?  I know that it's possible to run gnumeric's native
format through xslt & generate custom XML that way, but native support
in gnumeric would greatly reduce the setup costs.

TIA,
-Ken