OSGi DevCon Europe: Transactions with OSGi

Presentation is very good. Clement Escoffier is very dynamic, and has good vocabulary, and a very pronounced frenchy accent and grammar ;) (who am I to say?)
Very good explanation of the basics of transaction. Should be learned in schools as is ;)

Indeed transactions are hard to handle in a system where the transaction manager bundle or the transaction participants can leave during a transaction!

iPOJO Transaction Handler does that (amongst others). I'm still not clear if this is part of 4.2 release of OSGi.