Working on a pet open source project - integrating FoxyCart with the Laravel framework.https://github.com/thatericsmith/laravel-foxycart
Demo of it here:http://laravel-foxycart.thatericsmith.com/
It's fairly rough at this point - but it does include an Admin interface for viewing Customers, Transactions, etc.
At this point it handles the Transaction datafeed, Subscription datafeed as well as SSO.
Would love your thoughts and/or help building it out!