I'm not sure that this change
http://goo.gl/R2Ik4
is using the real memcache in production App Engine. As I understand
it, the 'Development' SERVER_SOFTWARE is what the local SDK uses, so
the dummy memcache is being used in production.
I'm being lazy and not actually testing it out in production, so if
I'm off base, feel free to point it out.
Thanks.