Using remote textures?

Is it possible to have a texture on a remote server that SL can access? From what I can tell, using any of the normal communication methods won't work(XML-RPC, HTTP, email).

The only things I have been able to find is the flickr slideshow where it takes an album and turns it into a quicktime format and a transcript of office hours with Zero Linden from May(maybe March) saying that they were planning on making this possible.

Transcript-
http://wiki.secondlife.com/wiki/User:Zero_Linden/Office_Hours/2007_May_03

I'm trying to create an exhibit of sorts where I can change whatever project its displaying without having to open SL to upload and retexture each prim separately. Ideally, I'd like to have it to where I can set up a webapp to do this so teachers can change this as painlessly as possible.

Any ideas within LSL? How about through hacking the viewer?

I think you have your answer there. That is work enough and it sounds like any other approach would only be more costly.

it may not be necessary to have the actual texture on a remote server... just the UUID. this still has you uploading the texture in SL once (and grabbing the UUID, probably by dropping it on a report object that sends the uuid to the server to use). this would be good for static/pre-planned content, but worthless for spur off the moment changes.

We'd like to be able to do it spur of the moment. The people who will be changing the textures might be bottom of the barrel when it comes to computer literacy. If I can get it to where the person would just have to drag a file to a folder on the remote server and the server/SL script takes care of everything else.