The Sakai 2009 pre-conference in Boston opened kicked off with some good sessions.
In Chuck Severence's pre-conference workshop "Building Sakai tools in the Cloud Using Google App Engine", he's essentially re-iterating the notion that Sakai development could in the near future be equally distributed across a range of programming languages and platforms, most notably in the Cloud.
We essentially worked through the development and deployment of a python app for Google's App Engine as an example of a non-enterprise learning tool, discussing the implementation of the current IMS Basic Learning Tools Interoperability (LTI) specification. Consider learning tools that are no longer simply shared as source code for deployment and hosting in your instance of Sakai, but rather a single deployment of the tool in the cloud and many instances of Sakai (in any institution) delivering that same tool from the cloud. (A further goal is to enable very easy creation of an adhoc teaching/learning tool by the teacher.)
The potential for educational institutions to leverage the capacity and availability of cloud services to reduce operational costs is real. Consider the hosting of shared tools in the Cloud via the Google App Engine and the hosting of Sakai instances in the Cloud via Amazon Elastic Compute Cloud (EC2)...
See
http://www.cloudcollab.com
http://api.cloudsocial.org/about.php
http://oreilly.com/catalog/9780596800697/
http://aws.amazon.com/what-is-aws/
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