I just dropped version .11 of libmemcached onto the download servers. The library has been in production now at a number of sites for the last couple of versions, but I think that .11 should be the best of the bunch. The library has now a number of features:
http://tangent.org/552/libmemcached.html
I still have the UDP protocol to do, but other then that the basic library is at a good spot for doing development with. Looking at the calendar it has taken me about two months to make this happen (keep in mind that is not my day job).
Now to make use of it...