Gandi.net Groups

While not necessarily directly related to GANDI's XML API, I was
wondering if there's a way to update a domain's zonefile dynamically.
Right now I use a CNAME to point to a dyndns.org address, but it would
be nicer/simpler if I could directly update the zone in question.

Possible methods:
- the "GANDI way": an extension of the XML-RPC api ("zone_set" only
allows you to switch between pre-defined zones, not dynamically alter
one - if I understand it correctly)

- the "common way": using the dyndns.org protocol, which is used by
other dynamic dns providers too. (a simple HTTP GET request) Quite a
lot of (software and hardware) clients support this protocol (see for
instance, http://www.dyndns.com/support/clients/thir... and
http://www.dyndns.com/support/clients/hard...)

- the "standard way": basically the RFC2136 method, so we can use
nsupdate and related tools. Windows 2000/XP/2003 support this natively
with a different authentification method (GSS-TSIG/RFC3645 instead of
TSIG/RFC2845)

So, Gandi folks... will this be supported one way or another?