Web based OS

Goowy -- http://www.goowy.com/index.aspx

Ghost -- http://g.ho.st/

Jooce -- http://jooce.com/





More info - http://www.readwriteweb.com/archives/webified_desktop_apps_vs_browser_apps.php

Spring OSGi

What is OSGi and a presentation about it.

http://www.springframework.org/node/506

Major current implementations :
Eclipse OSGi
Felix - Apache implementation

Eclipse plugin project is same as OSGi