The ADEP Client Component Framework (codename Gravity) is an ActionScript library that takes the concepts of OSGi and applies them to ActionScript. It provides a module and/or plugin architecture in which individual pieces can be added and removed seamlessly. The Gravity SDK comes with the es-sdk package for Experience Services. The parts become much more independent of each other allowing easier integration of content from different teams or repurposing of existing content. It makes it easier to have a library of parts that are put together as needed for applications.
While Gravity can be used by itself, it is one of the foundations of the Client Application Framework (Mosaic).
An excellent sample application using Gravity has been posted along with supporting video tutorials at ADEP Client Component Framework blog.