jQuery ModelAdmin Tutorial
SilverStripe core developer Ingo Schommer provides a tutorial on ModelAdmin, showing how you can build a basic CRM integrated with SilverStripe.
CMS that uses jQuery to build rich user interfaces to let every day people manage data in a web-app.
This free code will let strong PHP+JS developers build really great web interfaces to be used by non-technical people.
You write object-oriented MVC code in PHP, and a jQuery-based application, along with the database schema, automatically builds around you. (This is similar to ruby on rails, with the exception that the database schema is derived from code, rather than the code inspecting the database schema.)