nWizard

As an addition to the things we know about OSGi hereby I provide you a link to a nice presentation held by Neil Bartlett  at QCon UK.
I think that even if you consider yourself an experienced OSGi practitioner, this presentation can give you some refresh to the knowledge behind this “Module System for Java”.

http://www.infoq.com/presentations/OSGi-for-Application-Developers-Neil-Bartlett

Enjoy