Is there any site out there that offers an RSS feed for new/updated packages at least for Extras, maybe even for a number of repositories incl. extras-devel?

I follow the gentoo-ebuild-feeds this way. Not that I'd need it, but it's nice to know that when I'm home, a new version of Firefox or Gnome will wait for me.

Having the same for the N800 would be cool. Again, not necessary, maybe not even useful, but I'd certainly add it to my feeds if it's out there somewhere.

Anybody knows such a feed?