mxcl/homebrew — pull request #16530 by bdd (2012-12-12 11:22:41+00:00)
Title: New formula: twemcache

Twemcache (pronounced "two-em-cache") is the Twitter Memcached.
Twemcache is based on a fork of Memcached v.1.4.4 that has been heavily
modified to make to suitable for the large scale production environment
at Twitter.

Twemcache has been running in production at Twitter for two years.
http://engineering.twitter.com/2012/07/caching-with-twemcache.html