shameless plug:
All Catholic members of the iPod Party are strongly suggested to download, listen, and follow along in anticipation of an actual implementation. :-)
Very nice! I sent it along to my sister, who is a church musician (who has to work in an Episcopal church because the Catholic churches here don't want a classically trained musician...).
I really hope there is some chance of this. I just got back from six weeks in Spain, making the pilgrimage along the Camino de Santiago, and I can tell you that northern Spain is poised and ready to go back to Latin as soon as some authority gives the nod. The priests use a lot of Latin in the NO liturgies there, and there are an increasing number of new monastic foundations where the office is sung in Latin.
The Tridentine movement is less developed in Spain than it is here, partly because most of Spain never had the level of liturgical abuse that the US did, so while the NO liturgy is dull, it's not generally flagrantly heretical. In addition, the Spanish translations were much more faithful to the Latin original than the ICEL translations.
However, there is increasing interest in the devotional and musical traditions of the pre-VatII church, and I think there may be more development of the Tridentine rite (or possibly the Visigothic rite, which was the pre-Tridentine rite used in Spain, and is rather similar to the Byzantine rite).