I've placed an svk tarball that contains trunk/ from 3.4 onward at ftp://gcc.gnu.org/pub/gcc/infrastructure/svk-trunk-3.4-onward.tar.rz
Note: People expecting this to be massively faster (IE 100x) at some things like annotate are going to discover that unless you have a slow network connection, it's not. Things like URL diffs are much faster, of course. Anything whose time is spent transferring data instead of spleunking through the repo will be faster. Annotate is not really one of these things, since 60+% of it's time is spent diffing the versions. Most of these ops will be even faster than they are now when 1.4 comes out (~20-30%), but you can only do so much :)
