Yesterday the OpenSocial community announced the release of version 1.1 of the OpenSocial specification. OpenSocial is one of the foundation technologies that we use for our Yahoo! Application Platform (YAP) for interacting with the social information of our users. It is also the main social container technology that is implemented by many other social containers, such as MySpace, Orkut, iGoogle, Jive, and many others.
In the implementation of this version, one of the most exciting features is a new API to enable gadgets (or applications) to communicate with each other through a pub/sub mechanism. What this means for application developers is the ability to remove real-time silos from applications and have them be able to convey a rich social experience to the users, by being able to play off of user interactions across multiple gadgets.
Here's more information on this release, from the 1.1.1 Inter-Gadget Communication section of the release notes:
For full release notes please see the full notes.