Google Wave

Have you heard of Google Wave????
This is a short description of what it is from

"Google Wave is a new tool for communication and collaboration on the web."

Wave is a new communication platform that combines some of the features of Gmail with social networking and lifestreaming tools like Facebook and Twitter.
A "wave" is equal parts conversation and document, where people can communicate and work together with richly formatted text, photos, videos, maps, and more.
The idea was to figure out what email would look like if it were invented from scratch today.
Google plans to start sending out 100,000 beta invitations to users who want to help test Google Wave starting on September 30th.
You can sign up for more information about the limited launch at
From :

Google Wave has three layers: the product, the platform, and the protocol:
The Google Wave product is the web application people will use to access and edit waves. It's an HTML 5 app, built on Google Web Toolkit. It includes a rich text editor and other functions like desktop drag-and-drop (which, for example, lets you drag a set of photos right into a wave).
Google Wave can also be considered a platform with a rich set of open APIs that allow developers to embed waves in other web services, and to build new extensions that work inside waves.
The Google Wave protocol is the underlying format for storing and the means of sharing waves, and includes the "live" concurrency control, which allows edits to be reflected instantly across users and services. The protocol is designed for open federation, such that anyone's Wave services can interoperate with each other and with the Google Wave service. To encourage adoption of the protocol, we intend to open source the code behind Google Wave.