Memcache session handler

Hi all, I've just been implementing a memcache session handler that allows for multiple servers in a cluster to store their session data in a central place. I had to make the changes in the PHP source as the user session handler doesn't quite work properly (it wipes the references to the PHP functions when session_write_close is called). Anyway, so it's all working quite well (still undergoing testing) and it works with a main memcache server and a backup as a failover. I'd like to check the code back into the source tree if it's something that might be of use to the general community and am told that this is the list to discuss this? So a couple of queries: * Is this something worth checking back into the main source tree? * How do I get registered as a developer or can I provide it as a .diff to an existing developer? Best Regards, Glenn Richmond.