This is a really nice demonstration / working app from Adobe. The application is built using Adobe Flex 2 and runs in Adobe AIR. The application has been built to showcase Flex 2’s visual components and the interactivity a Flex application can provide.
The application allows small groups to share digital content, exchange ideas, centralise information and manage projects. It is not a final release software and is not supported, but lets people gain an idea of what can be achieved using Flex. Take a look at Adobe Lab JamJar
This is a quit compelling tool. I am looking forward this will change social networking and the web in a unexpected way. Naturally there are some teething problems but Adobe is going the right way to establish web2.0.1