[zxypoo]

I think open source has changed a bit with the rise of the GitHub era. IMHO, I think @mikeal did a good post regarding this change "Apache considered harmful" http://www.mikealrogers.com/posts/apache-considered-harmful....

Even in the old days, it's easier to fork than work with upstream. I think these days it's just easier share those forks with services like GitHub. It should help spread ideas and improved solutions IMHO so downstream consumers actually benefit.

In Twitter's case, they are planning to do what works for them at the moment: "While we initially focused on the challenging goal of making Memcached work extremely well within the Twitter infrastructure, we look forward to sharing our code and ideas with the Memcached community in the long term."