Open source client platform for messaging, communications. Shows email interface with links embedded in each message - with web services calls to various apps/services. e.g. mouse over for Google map, appointment, events, fedex package updates. Lots of mash-ups. Impressive.

APIs are open, can write mash-ups. Has the ajax magic going on. Fully indexed backend and search, a la Gmail. Including filter by calendar, attachment type, etc.

Group scheduling, calendaring - drag and drop etc.

"web services enabled platform" - can write different clients. e.g. mobile client. open source project.

Sounds great, I've gotta check this out.