i have a panny 42g10 and don't think they support dlna on this model. hope dlna catches on sooner than later, as it opens up interesting possibilities for serving and consuming media files.
to be specific i was looking for a dlna "nas" to store and serve audio/video (hopefully thru wi-fi) and a client like a blue ray player (already have the tv's!).
i think playstation 3 supports dlna, however i have not seen it work in this mode in any of the showrooms.