I need to look at the tarball builders and figure out how/whether to re-enable tarball uploads. I vaguely remember turning them off for a good reason, so I must figure that out before turning them back on.
They're currently creating tarballs with names like "allmydata-tahoe-1.9.0.post131.tar.gz", because 1.9.0 is the most recent tag in the git repo's master branch (1.9.1 was made on a separate branch, not trunk, and 1.9.2 was made from darcs). I think creating a 1.10a1 tag should fix that, but I'd like to confirm before allowing those tarballs to upload.