ECF is a framework for supporting the development of distributed Eclipse-based tools and applications. It can be used to create other plugins, tools, or full Eclipse RCP applications that require asynchronous point-to-point or publish-and-subscribe messaging.
See plans and components on the ECF Wiki for efforts currently underway.
The Getting Started tag appears to be hard-linked to the Users tag.
I think of the Getting Started tag as a place where readers go who are intending to get serious about ECF. If you want to get started with ECF, you definitely start off as a user. You may become a developer, but you start off as a user. However, I think it's more appropriate for this tag to contain specific information about how to 1) download ECF and 2) do something simple with it. That's what getting started means to me. So I recommend the following.