On the subject of X11 and the 6000
pdaX has said....maybe (more or less)
GPE on OZ brings up an issue. Obviously some of th QT apps we all love are not on GPE. It would be worthwhile to find, catalog and incorporate them, or equivalents.
zroadmap and zbedic come to mind. I know there is a "roadmap" that could probably be used, and there is mention of a "Qbedic" on pdaxrom. this stuff really needs to be tracked down and moved into OE, otherwise gpe ends up being cool, but empty. It seems like that is just the sort of thing a community like this would be good at.
On the other hand, there is a ton of great software for opie, and xqt is a viable x solution. maybe the most realistic solution is to use xqt to run x stuff that has no real equivalent in opie. either way, as OZ moves toward stabilty the "what apps run where?" issue should probably be worked out.