OSGi DevCon Europe: Pax

Tools and service implementations (framework independent)
Widely used (Apache Felix, Mule... etc)

PaxConstruct

A bit like maven archetypes (on steroids) for OSGi.
pax-create-project -g foo -a bar
pax-wrap-jar
...etc

PaxRunner

Standard launcher for major frameworks (Apache Felix, Knoplerfish, Equinox, Concierge...)
Does the provisionning of required artifacts
Generates Configuration files
Generates packages for a target platform

PaxExam

Allows testing of OSGi services. NICE!
Compatible with JUnit 4 and Maven for setup.