I personally use wordpress because the frontend for my website and also the people area continues to be built on zend framework. Once they login in the wordpress site which is simply a form template pointing to zend they finish up within the zend area having a zend session. They've no accounts around the Wordpress site it is simply accustomed to manage this content. Therefore if they leave the people area and therefore are around the front-end website id such as the Login link in top to display My Account to allow them to click it and go back for their dashboard. I saw a couple of posts on here about such as the zend libraries but no luck