I was reading http://live.gnome.org/GnomeGoals just now, and a thought struck me. I know that for some people (particularly admins) the six-monthly release cycle of GNOME is too frequent. They have just managed to iron out the issues with the last release when the next one comes along. How about devoting every second "release" to bug fixing and documentation?
Imagine what six months of bug-report and patch reviewing (and, of course, bug-fixing) would do for the quality of GNOME. Think TeX.
Remember kids: users don't really want features. They just want their software to work. (If you really must implement a new feature, please consider doing so by a plugin framework rather than monolithic releases.)