i just joined the xquartz-dev mailing list. i'm the lead developer of ardour (http://ardour.org/) which is a digital audio workstation that runs on linux and OS X. i've spent several months now working on both ardour itself and the port of GTK+ (which is the GUI toolkit that ardour uses) to Quartz. a few days ago, i finally bothered to compare the performance of ardour on Tiger when built with GTK/X11 versus its performance when built with GTK/Quartz. the difference was terrifying. the GTK/Quartz version uses twice the overall CPU cycles that the GTK/X11 one does. i started digging into this and at the moment, i am fairly convinced that its Cocoa that is the major issue. rather than bore this list with those specific issues however, what i wanted to ask was whether or not xquartz does/will/will not address the original issues that led us in search of a "native" version: drag-n-drop from non-X11 windows, and integration with the main menu bar model (neither of these are sensibly possible with the X11.app that predates Leopard). can an X11 application use these facilities without gross hacks and kludges? if not, is this expected at some point? thanks, --p