One major bug in the GNOME 3 design is the way that GNOME Shell handles Modal Windows on Overview. Currently GNOME cannot display Modals and that has proven confusing in many cases. Well GNOME Shell 3.8 hopefully will fix this!
Speaking of GNOME Shell, the changes and awaiting patches are many, and we can only estimate what will arrive in 3.8 and what won’t make it. However this will be ready for the next GNOME!
Modal Dialogs In GNOME
You all know the issues with Modals in GNOME. On the next screencasting it seems that GNOME has fixed some of them, but this is still under active development and many issues exist like Clutter Windows (ie. Sushi) which cannot be displayed on Overview; but this is another bug.
On the bellow video I applied patches in bug #650843. It would be useful to follow this and find out the complex issues (progressive bars, size of modals dialog etc), with something that in first place seems like an easy-to-fix. No it isn’t.
Other things you can notice in GNOME 3.8 on this video, is the border on Windows on Overview when are selected, the enchanted overlays transitions when modals are launched, and the fix of <close button> that it is now correctly displayed or gets hidden (no delays).
With 4 months ahead for the final release of GNOME 3.8, things look already unexpected good ..more than good ;)