Apache Camel a sub project of Apache ActiveMQ - is a declarative rules based framework for integration based on enterprise integration patterns - or EIP. Camel is designed to be very easy to use, and suports generics, automatic type conversion and already has a large number of integration components.
So why Camel ? We saw a real need for an easy to use, easily embedded integration package that is Apache licenced and really complementary to ServiceMix.
Camel version 1 should be ready to ship tomorrow - once James recovers from his hangover ;)