thank you and some questions...

[simoncn]

I agree that search is an important capability, and I definitely want to add it. It's not top of my list at the moment because it's an optional part of the UPnP AV specification and isn't currently supported by most browsers. As you say, it would open up a lot of great possibilities for the control point to work cooperatively with the server to give the user the best possible browsing and searching experience.

Actually, what you describe can be done at the moment with the Browse operation by having the controller browse the whole tree and store the results. PlugPlayer does something like this by preloading quite a lot of the tree but not all of it, perhaps because of bandwidth or memory constraints.