Anyone found a compatible XQuery yet?

["webhiker@tiscali.fr" <we...@tiscali.fr>]

We have been using Xindice quite succesfully for some time now, but have 
developed an absolute requirement to perform some XQuery's on
our database.
Now I know the Xindice developers are probably waiting for the 
specification to stabilise, but has anyone found some add-on which can 
be used relatively painlessly
with Xindice?
If we can't find an alternative, we'll be forced to switch to some 
(probably commercial) alternative such as XHive, which i'd like to avoid.

Does anyone have any experience here?

Cheers.
WH