Among currently available mm-sources ebuilds only 2.6.12_rc versions are available. I miss the more stable mm-sources-2.6.11-r4 one. Reproducible: Always Steps to Reproduce: 1. deleted ebuild 2. 3.
The main reason we provide mm-sources is to give people easy access to the latest breakage. We don't support it at all. If you wish to use an older version, you'll have to manage that by yourself (you could pull the old ebuild from http://viewcvs.gentoo.org)