mplayerplug-in can run in X mode without gtk. Please add gtk use flag and do something like: gtk? ( >=x11-libs/gtk+-2.2.0 ) to avoid pulling in gtk when unnecessary
I don't see how it's useful. In order to use the plugin, you need a mozilla browser. All of the browsers require gtk-2. Do you have a reason why using the X toolkit is needed?
hmmm, I was under the impression that firefox could be built without gtk (maybe just gdk, and there was a qt port once). But since the ebuild doesn't support that, I agree, there's no point in supporting it elsewhere at the moment.