I have recently started contributing to the WPbook plugin (http://wordpress.org/extend/plugins/wpbook/). This plugin allows users to turn their self hosted wp blogs into a facebook application. One problem we are currently having is the plugin only works if the blogs homepage is set to the "post page". For example if the user has a static homepage the plugin doesn't work.
Is there an easy way to get the blogs "post page" url using the wordpress codex? if this can be done we can just set this as the base url.