GNOME 2.15.3 tarballs are out today with the latest unstable packages. Phoronix will be providing screenshots shortly. At the time of posting, GARNOME 2.15.3 isn't yet available.

GNOME Sources: http://ftp.gnome.org/pub/GNOME/sources/
GNOME 2.15/2.16 Roadmap: http://live.gnome.org/TwoPointFifteen