There is a log of all changes under the Activities window; choose “Show recent activity for”. We will also be expanding the detail available on each specific contact, blog etc (you can see from the log the data is being recorded).
When contacts are imported a new category is automatically created (labelled with the current date) and the imported contacts are automatically related to it. I’d suggest renaming the category after the import with the person’s name. You can also export by any search criteria (however I don’t think you can search by creator currently).
Contacts can be exported by Category; users can export the familiar “simple” list that work well with Excel etc. and administrators can use a special “export all data” which is provided in an XML format that preserves the company/category relationships and all sub-activities (an unusual feature). This file can be loaded into Excel/MS Access etc.
Actually, when importing if a match is found for the record’s First name and Last name the record is updated; a duplicate is not created.