I've spent hours last night trying to get the helloworld-bpel sample in beta3 working but without success, so now i've removed the sample from the beta3 branch.
At some point (before 2.0?) I think we should consider if we want to move the bpel extension out of trunk to contrib until someone has the inclination to get it going well, but i'll leave that discussion for now and just take the broken sample out of beta3. ...ant