You probably heard about GNOME 2.91.90 being released last week, with a lot of goodies in various places, including changes to GNOME-Shell (new workspace management, improved design, etc..).
You can now test all this work with a fresh new release of GNOME3 live image.
Changes in the image itself is pretty minimal :
- switched back to default kernel, some people with non-PAE system could not use previous image anymore (thanks Andre for the info)
- more a11y tools integrated (still work in progress, thanks Javier for the notice)
- more language available (switching languages from GNOME 3 is broken in this image, it should be fixed with image 0.0.6)
To download the image, go to http://gnome3.org/tryit.html