I'm writing this post from my MEPIS 11 RC3 live DVD.
MEPIS 11 RC3 comes with Firefox 4 and Konqueror as its browsers, K3b for burning media, Amarok to play sound files and several video players (KMplayer and GNOME Mplayer.) It also has the GIMP to edit images and for its office suit, it includes LibreOffice 3.3.2. KDE partition manager has substituted GParted since MEPIS 8.5. Faithful to its tradition, MEPIS 11 can be used as a rescue CD or as a live OS should you decide not to install it.
How is it different from its previous test releases?
I'd say that the previous bugs I encountered are gone:
rest here