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Good article.  One of the first to go beyond the demo, recognizing that Wave is application platform - a wrapper for the convergence of communications and content. Excerpt: Wave is a new way to build distributed applications, and it will open the door to an explosion of innovation. What the Wave demo showed is support for a continuum from the shortest messages to longer and longer forms of content. All of it can be shared with precise control, tagged, searched. The version history is kept. No more mailing around a document. This takes the beauty of e-mail and wikis and extends it in a more flexible way to a much larger audience. Google Wave is a platform for creating distributed applications. Each Wave server can be involved in a number of conversations involving Wavelets, what most people would think of as a document. Wavelets are actually a much more powerful and general because they are based on XML, which means you can have lots of depth of content, like headings and subheadings of a book, but on steroids. Adding a document repository to XMPP is just revolutionary. The XMPP protocol manages the communication between the Wave servers so that all the Wavelets can synchronize as they are changed. Then Google finished the job by making Wavelets tag-able, searchable and versioned, so you can play back changes. But Google Wave goes beyond just managing the content--it also manages the programs that act on the content. At any level, a program can be assigned to a Wavelet to render it, that is, show it to a user and help manage the conversation. Google Wave also manages the distribution and management of these programs. The idea of a platform that combines management of the data and the code is really powerful.

Google programmers open source two components of the Google Wave messaging and collaboration prototype. One includes the Operational Transform, which forms the complex center of the Wave model. Google Wave is an example of the Pushbutton Web, where real-time communications rule the roost. Google July 24 said it released to open source the OT (Operational Transform) code, the framework that enables multiple people to edit a single document in real time across a wide-area network, as well as a basic client/server prototype that uses the wave protocol. The Google Wave Federation Protocol is an open extension to the XMPP core protocol, geared to allow near real-time communication of wave updates between two wave servers.

A new IETF working group has been proposed in the Real-time Applications and Infrastructure Area. The IESG has not made any determination as yet. The following draft charter was submitted, and is provided for informational purposes only. Please send your comments to the IESG mailing list (iesg at ietf.org) by January 20, 2010. ... According to reports from developers of Internet audio applications and operators of Internet audio services, there are no standardized, high-quality audio codecs that meet all of the following three conditions: 1. Are optimized for use in interactive Internet applications. 2. Are published by a recognized standards development organization (SDO) and therefore subject to clear change control. 3. Can be widely implemented and easily distributed among application developers, service operators, and end users. ... The goal of this working group is to develop a single high-quality audio codec that is optimized for use over the Internet and that can be widely implemented and easily distributed among application developers, service operators, and end users. Core technical considerations include, but are not necessarily limited to, the following: 1. Designing for use in interactive applications (examples include, but are not limited to, point-to-point voice calls, multi-party voice conferencing, telepresence, teleoperation, in-game voice chat, and live music performance) 2. Addressing the real transport conditions of the Internet as identified and prioritized by the working group 3. Ensuring interoperability with the Real-time Transport Protocol (RTP), including secure transport via SRTP 4. Ensuring interoperability with Internet signaling technologies such as Session Initiation Protocol (SIP), Session Description Protocol (SDP), and Extensible Messaging and Presence Protocol (XMPP); however, the result should not depend on the details of any particular signaling technology.

CloudStack Manifesto Before getting into the framework specifics, it would be worthwhile to cover some of the design principles we had in mind while we were building CloudStack: CloudStack brings together the best of the web and the desktop: We strongly believe in the convergence of the desktop and the web and will continually strive to expose more services that bring out the best from both. CloudStack enables rapid application development and deployment: Out of the box, CloudStack provides a fully brand able and deployable shell application that can be used as a starting point to jumpstart application development. CloudStack also provides a scalable deployment environment for hosting your applications. CloudStack leverages existing web technologies: We built the CloudStack P2WebServer container over the J2EE compliant Jetty web server. As a result, CloudStack applications are built using standard web technologies like AJAX, HTML, JavaScript, Flash, Flex, etc. CloudStack does not reinvent the wheel: We strive to reuse as much as possible from other open source projects and standards. By creatively stringing together seemingly disparate pieces, like P2P and HTTP, it?fs amazing to create something that's really much greater than the sum of the parts. CloudStack does aim to simplify existing technologies: We will abstract and simplify existing interfaces if needed. For example, we built simpler abstractions for JXTA (P2P) and Jena (RDF Store). CloudStack encourages HTML-based interfaces: We believe that the web browser is the most portable desktop application container with HTML being the lingua franca of the web. Rather than writing a native widget interface for the local desktop application and another web-based interface for the remote view, we encourage writing a single interface that can be reused across both local and remote views. HTML based interfaces are inherently cross-platform and provide good decoupling of design from code (versus having the UI as compiled