One thing though, wouldn’t you want to check to see if the value is different in the setter before dispatching it that way your binding doesn’t execute unless the value has really changed:

private function set _someProperty (value:String ):void {
if( __someProperty === value)
return;

__someProperty = value;
dispatchEvent(new Event(“somePropertyChanged”));
}

@volltrottel I’ve tried what you suggested in the past, but Flex reports a problem if you put a getter and a setter in different namespaces.