Google Open Sources Parts of Google Wave's Code

In May, at the Google I/O developer conference, the search engine giant unveiled Google Wave -- a Web platform that integrates e-mail with IM, document sharing, for near real-time interaction and collaboration. Now, Google intends to open source the platform's protocol and a significant portion of its code. Google has also made the Operational Transform (OT) code open source to all.

The Operational Transform (OT) code supports the Google Wave platform, while the underlying protocol is supposedly a simple client/server prototype that uses the Wave protocol. Google Wave is based on the operational transformation architecture introduced by the Jupiter Collaboration System developed at Xerox PARC. What is does is it puts all shared content on the server. A client cannot edit content without sending an operation to the server. The operation cannot be sent unless the server allows the client to send one. According to Google, this method does require the server to keep multiple copies of content for each client.
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