I've backported mplayer and the mozilla-mplayer packages from Debian and
Edgy respectively. I created a deltad-backports repository to hold them:
deb http://www.retout.co.uk/gnewsense-custom/ deltad-backports main
deb-src http://www.retout.co.uk/gnewsense-custom/ deltad-backports main
The usual disclaimers apply - I've no idea if I can provide security
updates in the long term. I've tested them only briefly.
I'm wondering how tricky it would be to let other people submit
backports, and create something equivalent to backports.debian.net.
I'm tempted to do gnash next - I've been using the version in Feisty for
a few days, but it might be nice to try a CVS version.