Why do you believe that development has stalled?
Currently Tom is on holiday, and I'm working on some BIRT reports for the console (which is taking me some days). And I'm sure the other team members are quite busy too ;-)
Regarding the BPMN project, you'll probably get more info about it in the near future.
I have to agree with Joram. Lots of things going on and maybe no checkins every day. Only checkin of the build does not break ;-)
And even though Tom is officially on, he made 2 big checkins the last 2 days in the BPMN area. Since this part is relatively still small but otoh, already great, You could have a look at the code. Helps you learn the concepts really quickly as it did for me. And maybe you can even contribute like I'm going to do.
So why you got the idea 4.1 halted I have no idea.
wow.... lots of cut/copy/paste/delete here....
... Only check in if the build....
... And even though Tom is officialy on holiday
Sorry... time for a holiday? No... first make the basics of the exclusiveGateway work