Ubuntu beyond GTK apps?

[Conrad Knauer]

I was reading /. and they have an article up about "QGtkStyle"
http://developers.slashdot.org/article.pl?sid=08/05/15/1319204

"A new project called QGtkStyle by Trolltech Labs gives Qt4 based
applications the possibility to integrate natively into Gtk based
desktops like Gnome or Xfce. Instead of simply imitating Gtk styles
QGtkStyle uses the Gtk theme engine directly. The project is still
considered experimental, but is another step into better integration
between Qt and Gtk applications."

And it reminded me of something that I had been thinking about in the
past; Ubuntu is GNOME-based, but does not always default to GNOME's
app selections (e.g. Firefox, GIMP and OpenOffice.org as I recall).
Wouldn't it be interesting to take that a step further and have Ubuntu
represent the best Linux apps (e.g. K3B?), regardless of widget
dependency?  If QGtkStyle (or such) could seamlessly integrate them
visually, I don't see why (beyond LiveCD size restrictions) that this
wouldn't be a good idea...

Anyway, just thought I'd mention the idea to see what people think.

CK