Subject says it all, really :-)

Following Daniel's suggestion, the latest version can be found on 
SqueakMap. New in this release is that the registered clients for an 
event are notified synchronously, but all the ones that throw errors or 
halts do not block the update; they are queued and re-signaled when 
everything is done.

--
Roel Wuyts                                                   Software 
Composition Group
roel.wuyts at iam.unibe.ch                       University of Bern, 
Switzerland
http://www.iam.unibe.ch/~wuyts/
Board Member of the European Smalltalk User Group: www.esug.org