FlexSpaces+AIR and FlexSpaces+Browser RIA clients for Alfresco have the following Calais features (using the Calais Integration for Alfresco, also in the Calais gallery): semantic tagging, auto-tagging, semi-automatic tag suggesting, node semantic tag properties editor, multiple semantic tag clouds, automatic geo-location tagging (displayed in a google map). These clients are implemented in Flex, AIR, ActionScript and server-side REST api JavaScript web scripts. (The AIR version supports additional desktop drag/drop features). Developed by Steve Reiner (Integrated Semantics).
http://integratedsemantics.org/2008/12/08/calais-integration-for-alfresc...

FlexSpaces views can also run inside the Alfresco Share client and as portlets in portals (Liferay, JBoss, etc.)

http://www.integratedsemantics.org
http://www.integratedsemantics.com

http://forums.alfresco.com/en/viewtopic.php?f=32&t=14382

http://www.integratedsemantics.com/FlexSpacesFeatures.html
http://www.integratedsemantics.com/products.html

http://forge.alfresco.com/projects/flexspaces
http://code.google.com/p/flexspaces/

http://www.alfresco.com/