API for "User Synchronization" plugin

It'd be wicked to have an API built into the User Sync Plugin so we can use this plugin to provide a Central user store for other web/Apps.

my thought is like this;
we use various bug tracking systems, ticketing systems and other business apps and currently we need various passwords and accounts for these and without deploying openID or openldap this becomes tiresome (especially when building up MANY websites concurrently). Not everything is based on Wordpress but they almost always support plugins which means we could get this operational.