>Is there a version of
Firefox 3--or, i guess, Iceweasel 3--in package form yet, or is it still in
some kind of testing form where you have to compile it yourself?
It is only in Sid
right now: http://packages.debian.org/search?keywords=iceweasel
Of course there is
nothing stopping you from installing firefox3 manually, but if you want
Iceweasle deb packages, you will have to pull from Sid.