tutorial « osgi « Java Enterprise Q&A

1. Tutorial for ServiceMix 4.2    stackoverflow.com

I try to figure out a start with Apache ServiceMix 4.2 Sadly the tutorials on the homesite seem pretty much outdated ... with 4.2 the services seem to be started out of ...

2. Good OSGi tutorials    stackoverflow.com

Do you know any good tutorial for OSGi? It should detail how it is used but also how it work internally and the different implementations and their differences.