Finally a real release. Thanks to Hanno Lans this release could be build.
node_factory_set_value is now aware of some cck field types:
node reference : select or autocomplete
text / integer : select, radio/checkbox
Furthermore og_groups field is working. When a cck field is not supported then function node_factory_set_cck_value is to the rescue. This is currently the only way to support multiple values.